Got my daughter with me. School cancelled here in N.C. over hurricane Michael. She usually makes me wait for her to get home to watch these. I've got my coffee. She's got some hot cocoa... We're gonna have ourselves an Arthursday now!!! Happy Arthursday!
I worked at a factory that produced aluminum cans. I had a supervisor train me in the use an maintenance of an automated palletizer. She had been trained by someone who had been trained by someone else going back years to when they had initially been installed. Like Chinese whispers, the methods had changed over time. I am very mechanically inclined and had many technical questions that my supervisor had no answers for. The method she used to set up and operate the machine worked, but it was all ritual and much of it made no sense mechanically. When I questioned the reasons for certain unnecessary parts of the maintenance ritual, I was fired.
Automization is actually a reason to assume that rituals instead of understanding will be established. As your example illustrates. Which is completly understandable, because you need to understand less and inefficient methods will still get you the needed result. So it's just perfect to produce stupid religions, because the believers can always point out that they were sucessfull anyway, even though you might have reasonable objections.
Reminds me of the book the City of Ember. The city was underground for hundreds of years and had a generator that sometimes broke down. there were engineers who worked on it, but had no idea at all how it worked.
I would guess that ritual unnecessary maintenance you were questioning was key to the process. Companies don't fire smart people, they fire smart asses.
I think the single most compelling thing about this channel is its optimism. It's very inspiring and reminds me of a quote from my favorite author, Arthur C. Clarke; “And because, in all the Galaxy, they had found nothing more precious than Mind, they encouraged its dawning everywhere."
well, there's probably nothing more INTERESTING! Rock and gas are important but they might lack variety, they can't argue with you about nothing.... Look at all of us! Talking about this stuff as if it had any chance AT ALL of happening even in our grandchildren's lifetimes! Isaac Arthur videos are like the looking-glass world, where you can believe ten impossible things before breakfast. I watch a lot of these things and curse them every time because 1) He seems to get lost in the topic 2) Unlikely things pile up and up! That is, whatever we're discussing is a result of a CHAIN of things that are individually unlikely! I think probabilities like this MULTIPLY together, and if you have several stages and each is of low probability... what you get is a fascinating animated picture of something that maybe nobody will ever SEE! And for some reason a robot working on a V-8 engine-block, which is something that actually happens now right here in Murica.
Ouch. Imagine the generational ship arrives at its destination only to find out faster-than-light travel was discovered a few decades after departing. Planet is fully inhabited.
common theme in sci-fi! I recall one where the people on the ship are visited by ? something like a traveling salesman, he doesn't have a ship or anything, he's just skipping across the galaxy by thinking the right way. Lots of references to ships being caught up to by other ships that left much later. All of this I.A. stuff involves a lot of hand waving and improbabilities PILED UP! Major difficulties social, and technical are being sort of waved away, I think NONE of this is very likely at all, even though we all have cell phones to be sure. And jet planes! Is the space ship to the jet plane as the jet plane is to the amoeba? This whole world of discourse takes place in a world that might NEVER travel to distant suns! Might! Might NOT! Everyone I KNOW starts waving their cell-phones at this point. Is the self-replicating and spaceship-constructing robot that does useful relevant stuff and doesn't rebel (!) as far from the cell phone as the cell phone is from the stone axe?
@@Mocha69A assuming the method allows it. If it's something like a star trek wrap drive or a Mass Effects FTL? Yes. If it's something like Star Wars hyperspace, Warhammer Warp, or Halo's Slipstream it might be impossible.
astrophotography Your is this most unrated comment I've ever seen! Unless somebody already made that joke and I just never noticed it. That should be a recruitment slogan for work in space! "Now hiring for low pressure jobs in space!" Lol! I think your comment deserves to be a favorite with thousands of likes!
Good point. But they probably wouldn't need to last 1 million years. Traveling to a given planet would probably take less than 10,000 years. Plus if they have an internet connection to the homeworld...
@@mostlycensored7668 Watch the video about Quantum entanglement, it may be "FTL" but it doesn't allow communications without subluminal signals being sent first
I have been doing my part to help you get to 300k. I have been recommending your channel to people. One of the best channels on YT and it deserves 1M+ subs.
I like the way you integrated the sponsor into the end of the video this time; I usually tune out at that point, but it was smoother and more compelling this time. Thanks for a fantastic channel!
episode idea: Clone civilizations. Civilizations that abandon their natrual procreation strategy and opt for cloning. Why would an ark ship worry about genetic breeding stock when they can just clone themselves?
Ed Thoreum, A colony heading to Proxima Centauri would still be watching current media produced on Earth. Episodes are just 4 years behind. Earth will still be watching the colony ship. The first colonies will be extreme reality TV shows.
Where are the other 10 million subscribers your channel deserves? Honestly, The effort & work you put into your content is incredible, Your ability to communicate often complex concepts in layman's terms without diluting the underlying fundamentals is a hard call, but it's a task you excel at. Thank you SO MUCH.
You are one of the most ambitious and hardworking UA-camrs I have ever seen. As much as I enjoy all of the free videos, you definitely deserve your own high budget series on a subscription platform.
I've watched so many of these docs that when i hear a scientist without a speech impediment they don't sound legit to me. Excellent upload as always sir.
Makes me think of "Our [hope for humanity] Thursdays", which at least in my case is definitely true, I can only hope that we get radical life extension or mind uploading soon(ish) cause I'd hate to miss any of this
Can someone explain to me, why I havent heard of this channel till yesterday?? I am obsessed with tech, futurology and all that juicy scifi stuff, but youtube was hiding the BEST channel from me for over 2 years! INSTANT SUB!
I don't know if you watch any anime at all but Macross Frontier does the Colonization Fleet thing very well to a point that you definetly see all the advantages of a fleet instead of the classic gigantic colony ship. Amazing video, was a great listen!
I remember when he had a dozen subs and actually gave me a pretty substantial reading list of SF classics . I read a third before my attention went elsewhere. There is no channel i could be more happy for. Cheers and GL m8!
@@pepesmith2188 That 40k has conflicting lore is actually a point mentioned in 40k lore. They never retcon anything because in-lore, everything you read is an authentic source found somewhere in-universe. Them being inconsistent does not mean its wrong, it's just shoddy book-keeping or propaganda. So who's the heretic now?
Your work is one of a kind. Living, thinking and contemplating ahead of your time takes true passion, genius, ambition and curiosity. Great work and happy arthursday!
Patrick Co We would make our ship the way it needs to be, currently we are reshaping the planet to better suit our needs, the problem is that there are waste products in the conversion process.
Let's start at "What is the natural state of the Earth that we should maintain?" The hot hell of the primordial times? The chilling freeze of the Last Glacial Maximum? What is the baseline for this tumultuous planet?
More than anything Arthur, your videos elucidate for me that there are people willing to sit on the side of a road videotaping themselves pretending to hitchhike just to sell the video to be used as a B-roll over a commentary. What a time to be alive.
Love the artwork and graphics in this episode. Your team continues to outshine itself with every episode. Thanks for making my day a little more "brilliant".
@@chocchip4172 not true my friend. The sun is moving and so is our galaxy. We are like the dust swirling around an asteroid hurtling through slace. The earth has NEVER been in the same place twice.
Exactly, everything in outer space is moving. So let's wait until some stars get closer to us; maybe we'll get lucky and there will be intelligent life on some of them. Patience may be our best way to go.
The earth is the arc. But we’re not going anywhere. We should know that the journey is the destination. We are on the arc and we are there. We are not going to live anywhere else and we shouldn’t want to. We need to make this work, not run from it.
@@isaacarthurSFIA cool. Riding Ceres, Vesta, or even Pluto to Proxima Centauri sounds like a good plan. Might need to hollow it out a bit, though. Getting to a few percent C requires significant percent of your mass be fusion fuel. May have to park Pluto in Neptune's orbit during its closest approach, and leave it there for a decade or two to refuel and modify it. Maybe just modify Triton instead if you want to do it quickly.
@@KARANVANIYA for very long journeys, yes. It would require massive amounts of resources and several internal O'Neil cylinders to function the way we want it to, though. For the first few colonies (Proxima Centauri for example, which would take less than a century to reach) you may want to just send multiple O'neil cylinder ships. The cost and infrastructure needed would be much smaller.
This video is vital (as well as the others in this series) in a text based game i'm going to make, space colonization simulator of course. the player will have a set amount of starting points to buy some techs at the start, but they'll also be able to build and research these on the ride, so the game will be fairly difficult and at the end all the things they've done and built will decide the probability the colony will survive. not having a stopping mechanism will lead to an automatic loss at the end of the trip and they'll need to exploit research and construction times to make the ships they have more efficient, for example the cellular regeneration tech that'll remove the negative effects of radiation will take less time to research than the time it takes for all the embryos of animals along the ride to die, so you shouldn't buy the tech at the beginning of the game when you can just get it along the way and devote points to other important advances like bigger-is-better ships, fleets, and probes to get materials to expand ships along the way, begin terraforming the target planet, take pictures of the land and deploy rovers to increase the end-game survival chance, set up an option for the stopping system as discussed previously, and construct infrastructure for the colony.
Just wanted to Comment to say i love your channel so much knowledge in a really well presented way. sometimes i just play your episodes on my phone and listen while i perform other tasks. Continue the great fantastic work!!!
Yeah it just uploaded, yeah I just began listening, and yeah, I auto-liked. Because it's videos like this that keeps my 'thought bubble' alive and well, so I can think of better things ahead than just my shitty, meaningless job. Thanks Mr. Arthur !
Thanks, I want to say it airs October 25th but I'd have to check and it might change, we recorded it the day after the livestream... actually went on for 4 hours but a lot will be trimmed I'm sure.
It's always a pleasure to listen to your soothing voice discuss topics of incredible interest. My satisfaction is immeasurable, and my day is salvaged.
Great episode. As someone who only replaces things when they stop working (i.e. years after a shiny new version comes out), I can 100% empathize with the 'using rituals to operate (or work around issues of) tech' folks.
The man with the voice. I'm so happy to have found you so early in your channel's history. It would surprise you how many times I've watched and re-watched your content. I don't have your brain, but I do appreciate the worlds you describe. Thank you for making the leap back when you were hopped-up on Sudafed recovering from your flu. You would make an awesome author, Arthur.
Isaac you talk about the 2nd generation not being happy about their circumstances because they can't jump ship like we can back home. But I'm confused how do we jump of the generation ship called Earth?
First heard the term Genius Loci from Harry Dresden of the Dresden Files. And yep it immediately made me think of AI controlling a building or park, or The Dark Tower series where a bullet train turns murderous and also decides it likes riddles and jokes. In the story Dresden has to treat this spirit very politely and try to figure out if it only wants him to leave, wants everything that enters its territory dead, wants him to never leave, or if it can be reasoned with or bargained with.
It feels like every time I watch any of your episodes, my brain explodes, from all the stuff I realize that we usually don't even have to think about. But is necessary to consider when/if these endeavors are going to be successful.
"If you picked the hundred or so cultures that have existed and that most valued knowledge and learning, the overwhelming majority of them would be around right now." Depending on how you define "culture," I'm not sure that's true. (Not just because of anti-intellectualism being in vogue in the USA, either.) Plenty of so-called "primitive" cultures show a distinct interest in learning and knowledge; they just don't have the knowledge base that eight thousand years of centralized grain-farming states can bring you. Even limiting it to technical/scientific knowledge, you'd again have to be _very_ careful with your definitions to make that a true statement, and it would probably end up being a nearly circular statement when you consider how our definitions of "technical" and "scientific" are bound up in our culture's understanding of science and technology. That said, I'd agree that the cultures which stick around tend to be the ones which care about knowledge and learning. Zealous ignorance can propel you forward for a few generations, but if you're not isolated from others who practice more reality-based versions of your ideology (or, for that matter, of other ideologies...heck, even equally-zealous forms of other ideologies can cause problems), you're bound to either fall apart or start accepting the importance of empiricism once again. 2+2=5 doesn't even remotely work unless Oceania, Eurasia, _and_ Eastasia agree to it.
It is certainly hard to define, but I'll appeal to common sense and meaning here, most of human history literacy was the exception, not the norm, and houses did not own many or even any books. Now, we have casual access to knowledge and every aspect of our society stresses the importance of learning. Even those groups which tend to decry one topic or field usually also stress learning in general. Alternatively, while we know a lot of our predecessor culture greatly valued knowledge, we know it mostly from a handful of scholars, a tiny minority of the population, who were probably over-emphasizing it's importance to their overall culture because it was so important to them personally and usually their social circle.
Society benefits as a whole when we individually overemphasize what that individual is passionate about. I do not place great emphasis on art but Salvatore daili enriched us all with his art. Same is with science. What practical value is there in knowing about the Higgs field? Black holes? Or even antimatter drives? But that is not to say that we are not all enriched by Higgs and all the work done by his colleagues in the scientific community.
The best part of every Thursday. Waking up to a new Isaac Arthur video. A fantastic episode as always Isaac and crew, learned new things today as always. Your videos have always been so enlightening.
I was thinking about different hyper robust methods of preserving high density data, so I presume you could use something like platinum-iridium plates, but we know that the standard kilos absorbed hydrogen so has a propensity to slowly deform, so over a million years there will be data loss as entropy deforms micro etching over a million years. So maybe some sort of microscopic etching on mono crystalline silicon? It’s funny as my wife’s mother has a first run Dire Straits Brothers in Arms and it does not look in good condition and these were supposed to last *forever*. Anyone better informed on how to store data (hard write once read very many) for a million years plus, in a very compact form? I remember at HP labs storage research that even the most bullet proof SSDs have a finite number reads before a breakdown, a million years needs a fair bit of stability and have sufficient data density to store something like multi exobytes of data.
Isaac, you got one thing backwards - it seems counter intuitive, but cultures actually hold more together in smaller populations or populations that have left their original homeland. Linguists discovered this trend - populations that leave go through less linguistic and cultural drift than the original population - both populations still have divergence from the origin, but the original (or higher population) changes faster. This has been shown to be true of American English versus British English, Dutch farmers in Africa, migrating tribes in Africa, and Siberian populations. Okay, it's not terribly important, but it's a factor in planning a future civilization. Wait wait wait, did you really say that technology is allowing us more free time each day? Seriously?
I think it would be cool to have a netflix series about a million year ark where every episode, or every few episodes are about a different century on the ship. Like going through the history of the ship on its million year voyage, with wars and geopolitics but it's on a massive rotating habitat colony ship.
Here's a concern I thought of: discovery back home. Say a ship sets off and a few years later, a signal catches up, saying they cured cancer, but the ship doesn't have the facilities to make it. What should be done with that info?
DrearyPlane8 Hmm.. Sound Logic.. But I guess those issues arising out of cancerrous developments would already have been solved using nanobots already present in the body of every colonist.. By getting an updated version of cancer definitions just like any modern antivirus software getting an update of virus definitions..
Awesome stuff as ever... I'd never even considered mass loss as a limitation on long voyages. Up there with radioactive decay limiting suspended animation as a simple but critical issue.
Good video, but you don't mention anything about Intergalactic travel. Since the distance to the Andromeda Galaxy is 2.5 million light years away, any journey there is going to be a whole extra order of magnitude longer and more difficult than any trip within the Milky Way. If it takes a typical colonial fleet a million years to cross a mere 100,000 light years (~10% c), then it's going to take 25 million years to make the intergalactic crossing. And if the ships can only move at like 3% or 2% of light, then we're talking between 83 and 125 million years! This starts to look like geological time. Maybe for this kind of journey you would want some kind of "planet ships", like you briefly mention?
I think trying to figure out intergalactic travel at this time is like amoebas 3.5B years ago trying to plan out SpaceX. We haven't colonized the solar system, much less the galaxy. By the time we, or some other life form or it's AI creation does, things will probably operate so differently or beyond our understanding at that scale we might not comprehend it any better that one of your cells understands or is aware of your moving to another city or continent. Most people don't even understand relativity, and given the speed of travel, galactic colonies will likely genetically diverge so much from the original species so as to be something else entirely. They will be far enough apart nobody would have any idea how different colonies are evolving on the other side of the galaxy because it takes longer than the age of the species to send the data. What kind of super organism could handle galactic trade or even communications when light speed communications take longer than the age of a species? Whatever unimaginable super organism that is, it it probably what it takes to figure out and make intergalactic travel possible. And most of the subspecies that make up it's galactic scale body may be none the wiser.
Yeah if there is no warp drive then such journey will be made either by planet size ship or by some very small ship with powerfull ai which will bring to the destination maybe only fozen brains and then clones bodyies in new galaxy and wake up passengers at destination.
@@TheJeremyKentBGross Might be something only robots can do! It really seems like they have all the advantages, aside from not existing. But if the giant AI we keep talking about DID exist, and could design and build stuff, it seems like the perfect candidate to take over the galaxy! It's not in a hurry, can live in vacuum, can cheerfully and patiently eat up asteroids and rogue planets and turn them into MORE AI, more robots, more ships, and a globe of purposeful intelligence slowly spreads out from wherever the starting point is.
Hey, Isaac, I love all your videos. You deal with all the problems of space exploration/colonization/industrialization with refreshing intelligence. But, unless I missed an episode, there is still one video I am waiting for you to make: what will future spaceships really look like? Spaceships in movies look really cool, with wings and cockpits and multiple engines and such, but are such spaceships really practical? NASA's Nautilus-X design, after all, does not look anything at all like a spaceship that might appear in Star Wars. Please, I'm begging you, do an episode on spaceship design. I'll sing hosannas to you if you do.
I was watching that last bit of rotating habitat video when I noticed something. The clouds. Clouds form on planets because the upper levels of the atmosphere are cooler, heat loss to space and radiant warming of the ground. On the inside of a cylinder that is not going to happen without a heat sink of some sort running up the axis of rotation. Just my .02 worth.
Good point.. But consider this.. The Central volume of the atmosphere in the rotating o'neil cylinder will be least dense due to the centrifugal force. So the raising clouds are likely to create an effect similar to that in earth atmosphere due to nagative density gradient towards center.. Although this may sound logical, the different curvatures of living surfaces of earth and o'neil cylinder is Worth considering. All the radiation from clouds can not escape the o'neil cylinder under normal circumstances..
@ 5:26 My mind was blown. I don't often comment, if i do, it can often be negative, i apologise. @ 5:39 the philosophical impact on me personally regarding my life, was immense. I immediately pieced together so many motives and understandings of those around me growing up. That old chestnut, "you will become what you surround yourself with" all of a sudden makes sense, and then i'm faced with the challenge of finding the guts to change my life, change my friends, change my habbits and those i associate with, change my dreams and ambitions, change the decision making matrix of my mind that has been telling me this life is shit, this world is shit, why bother... It's almost as if all of a sudden, i understand why... Thank you Isaac Arthur and the SFIA crew...
Has anybody ever thought that maybe living on a sterilised ship for extended periods of time might cause unforeseen issues, I've always thought we might need a biological ship with an ecosystem with some flora and small fauna in order to survive adequately after all we evolved to be in environments like that, these environments might have an impact on our micro biome and such.
I could see a population of hyper-allergenic colonists, but this is nothing irreversible. You can either already incorporate it in your ship or cure it with modern medicine.
You beat me to this comment. I was thinking of the Quorians from the Mass effect universe. They had severely weakened immune systems after spending 1000s of years in space after losing their homeworld to an artificial intelligence.
My opinion: For security reasons, we must cluster the ring, because of asteroids. Each group of cluster must be the same as the other, with food... Embryos can be frozen. Robots can work for the ship.
This is an interesting concept. Having generation ship fleets that go out in succession chronologically (like timed to be released every 30 years), would enable better updates and communication with the original launch location (like Earth) than if one large ship goes out only.
Here is a good question, what about making these Arks not a vehicle for the journey but as a destination themselves? I mean what about the a species, or part of a species, who choose to becoming nomadic in the stellar terms? A massive colony fleet that has the sum total mass of... Jupiter and it's system of stuff? Maybe they just had enough of their parent civilization (K2) and said good bye. Aimed to the galactic edge and set course for the nearest other galaxy knowing it would be so long for their home species to even WANT to go that far as to basically make them a non issue. They have a fleet of ships but each has the Surface area of Australia for example JUST for living and biological ecosystems. What would their culture be like? I mean there is no mission so much as, "F*^K this S!YT, I'm out!" is a mission. just a roaming fleet designed to have everything they could need and a population around Earth right now with room to grow. Would they try to control their own evolution in that case? The point is to GTFO from the galaxy so they are unsure what they will find in the direction they are traveling so would they just allow evolution to go on about it's marry way and jsut ensure the whole of the fleet can still breed with the other members (at worst making it sub-species). I mean the big point seems to be, "Stay on Target!" but what if the target it not the destination but the journey itself, would that change the equation so to speak? For this example lets use Humans, K2 Pilgrims said "We are going to go over in this direction and you guys can sit on it and rotate!" because... they are Bronies or something (the cause is not really the point) and are kind of shunned by their civilization. They pooled their resources for jsut a colony ship but every time they set up shop to colonize they realized people where only a few decades behind them and had to move again. Over time this allowed them to get that mega fleet going but they finally had it and some Nutter named Daniel said, "Screw this galaxy! They are going to keep expanding it is so i say go big or go home!" and plots a course out of the galaxy pointing to... pick another galaxy. What would happen? Oh and assume this guy actually convinced the people he was right so it is now a thing.
That would be an interesting society. Maybe it's thirty million (or thirty billion) people, planning to live between stars or galaxies forever. Their goal wouldn't be another planet or even another star, though they might stop at (or have their drones stop at) various planets, stars, and interstellar objects for materials and to study if it's interesting enough. If they need or want anything informational from those left behind, they trade advance exploration info for it. Maybe they're not even heading for that other galaxy, at least not yet. Nope, they're just knocking about THIS galaxy for the next half million years, a decade or two ahead of the colony fleets. Only when this galaxy fills up do they strike out for the Magellanic Clouds or Andromeda or wherever.
A more massive ship/fleet means there is less fuel available. Minimal colony ships could go much faster and get ahead of your Jupiter mass fleet. Maybe you could launch into the inter-galactic void. Anyone else choosing to colonized the void is not likely to want to be near your colony. Maybe pirates who were descendants of people who wanted to be alone but changed their mind.
Right well, how would their society, their culture change? The idea is to jsut get away from their species. Maybe it is because of presecution (misspelled) or they have a life style the main species can not allow (No idea and the specifics are not really important). They jsut want to stay away from the rest of their species as much as they can. They choose to leave the galaxy behind WELL before it is filled to make sure they are left alone after they stop in systems time and time again for new material and find a coming colonial fleet. They basically give up on living in any real form of gravitationally bound area, sending fleets to gather materials but past that their civilization is jsut nomadic. Imagine how they would change. Would they try to control their evolution? Would they try to make new ecosystems that can be in microgravity? Would they alter themselves to be more at home in lower and lower gravities over time? I love Sci-fi btw. Hence i think on this. I am also a HUGE Warhammer 40k fan (Adeptus Mechanicus for life!)so it always makes me smile when Issac mentions them. Something i wondered, Universe-class Mass conveyors (If designed properly) could act as mobile stations. get a nice sized fleet and just head out. A few millenia later a race of Abhumans come around totally adapted to void life and masters of void craft.
You know, that sort of 'mission' of detaching from an interstellar or even K2 Galactic civilization could become a culture in and of itself. Imagine a sub- _'cult'_ -ure of several million to several billion, deciding to congregate at a white dwarf at the edge of the galaxy, building a dyson swarm, then suddenly converting all swarm elements into components of a Shkadov thruster. That 'escape' would take a long time before they were out of practical reach, and would attract attention and no small amount of 'converts' over time. Whether it turned into a full-fledged superstitious cult or not, the act of 'ejecting' from the bonds of a massively interlinked civilization could become the focal point of interest, a non-technical hub to which all the technical spokes attach.
Got my daughter with me. School cancelled here in N.C. over hurricane Michael. She usually makes me wait for her to get home to watch these. I've got my coffee. She's got some hot cocoa... We're gonna have ourselves an Arthursday now!!!
Happy Arthursday!
Hot cocoa? Woah, is it winter for you already?!
Parenting done properly. I salute you !
@@liranpiade4499 Snow where I am.
Stay safe down there, looks to be a particularly nasty storm.
You are the coolest parent ever! Lucky girl, having you as her papa! Stay safe, wishing you and your family the best!!
I worked at a factory that produced aluminum cans. I had a supervisor train me in the use an maintenance of an automated palletizer. She had been trained by someone who had been trained by someone else going back years to when they had initially been installed. Like Chinese whispers, the methods had changed over time. I am very mechanically inclined and had many technical questions that my supervisor had no answers for. The method she used to set up and operate the machine worked, but it was all ritual and much of it made no sense mechanically. When I questioned the reasons for certain unnecessary parts of the maintenance ritual, I was fired.
Automization is actually a reason to assume that rituals instead of understanding will be established. As your example illustrates. Which is completly understandable, because you need to understand less and inefficient methods will still get you the needed result. So it's just perfect to produce stupid religions, because the believers can always point out that they were sucessfull anyway, even though you might have reasonable objections.
Reminds me of the book the City of Ember. The city was underground for hundreds of years and had a generator that sometimes broke down. there were engineers who worked on it, but had no idea at all how it worked.
I would guess that ritual unnecessary maintenance you were questioning was key to the process. Companies don't fire smart people, they fire smart asses.
I would love more details about that situation. What the process looked like, how it all went down between you, her and the higher management.
Heretic!
Banish the one who questions the Holy Checklist!
I think the single most compelling thing about this channel is its optimism. It's very inspiring and reminds me of a quote from my favorite author, Arthur C. Clarke; “And because, in all the Galaxy, they had found nothing more precious than Mind, they encouraged its dawning everywhere."
Shut up
well, there's probably nothing more INTERESTING! Rock and gas are important but they might lack variety, they can't argue with you about nothing.... Look at all of us! Talking about this stuff as if it had any chance AT ALL of happening even in our grandchildren's lifetimes! Isaac Arthur videos are like the looking-glass world, where you can believe ten impossible things before breakfast. I watch a lot of these things and curse them every time because 1) He seems to get lost in the topic 2) Unlikely things pile up and up! That is, whatever we're discussing is a result of a CHAIN of things that are individually unlikely! I think probabilities like this MULTIPLY together, and if you have several stages and each is of low probability... what you get is a fascinating animated picture of something that maybe nobody will ever SEE! And for some reason a robot working on a V-8 engine-block, which is something that actually happens now right here in Murica.
Ouch. Imagine the generational ship arrives at its destination only to find out faster-than-light travel was discovered a few decades after departing. Planet is fully inhabited.
Generation ship: Confused screeching.
If that was so then they should hopefully be known and the new tech ships catch up with them and upgrade the first colony's progress
common theme in sci-fi! I recall one where the people on the ship are visited by ? something like a traveling salesman, he doesn't have a ship or anything, he's just skipping across the galaxy by thinking the right way. Lots of references to ships being caught up to by other ships that left much later. All of this I.A. stuff involves a lot of hand waving and improbabilities PILED UP! Major difficulties social, and technical are being sort of waved away, I think NONE of this is very likely at all, even though we all have cell phones to be sure. And jet planes! Is the space ship to the jet plane as the jet plane is to the amoeba? This whole world of discourse takes place in a world that might NEVER travel to distant suns! Might! Might NOT! Everyone I KNOW starts waving their cell-phones at this point. Is the self-replicating and spaceship-constructing robot that does useful relevant stuff and doesn't rebel (!) as far from the cell phone as the cell phone is from the stone axe?
Kinda happens in Star Trek TOS "For the world is hollow and I have touched the sky".
@@Mocha69A assuming the method allows it. If it's something like a star trek wrap drive or a Mass Effects FTL? Yes. If it's something like Star Wars hyperspace, Warhammer Warp, or Halo's Slipstream it might be impossible.
The best channel on UA-cam.
I absolutely LOVE your channel!
I agree with that.
Yours is pretty great too!
Better than most normal TV shows and way more informative
I’m commander shephard, and this is the best channel on the citadel
19:25
Robot: "What is my purpose?"
Rick: "You pass butter."
Robot: "Oh my God."
Welcome to the club.
Rick: "You make paperclips"
Robot: "You are components for paperclips"
A one million year journey in a vacuum? No pressure then. :)
astrophotography
Your is this most unrated comment I've ever seen! Unless somebody already made that joke and I just never noticed it. That should be a recruitment slogan for work in space! "Now hiring for low pressure jobs in space!" Lol! I think your comment deserves to be a favorite with thousands of likes!
The idea is to send people. We need the pressure :\
Comedy. Gold.
Groan... ;)
I'm left with nothing but an empty feeling...
if a civilization can last 1 million years on a ship, why would they need a planet? just make more ships
Good point. But they probably wouldn't need to last 1 million years. Traveling to a given planet would probably take less than 10,000 years.
Plus if they have an internet connection to the homeworld...
@@ryanb9749 internet connection to their homeworld would mean FTL travel, something with a chance of 99.999% of being impossible
@@noietzpk5169 Entanglement is soundly proven at this point and communication systems are already in the works.
@@mostlycensored7668 Watch the video about Quantum entanglement, it may be "FTL" but it doesn't allow communications without subluminal signals being sent first
@Darrin Grandmason There is a chance of us discovering FTL, but it is astronomically small, soo its ok to consider it as pratically impossible
this channel is the best discovery I made this year, keep doing this awesome work
. 5,000 years - history
10,000 years - agriculture
200,000 years - Homo sapiens
1,000,000 years - Isaac's Ark Ambitious as always!
I have been doing my part to help you get to 300k. I have been recommending your channel to people. One of the best channels on YT and it deserves 1M+ subs.
Well damnit, you deserve something
@@neweraccount5615
Nah, I'm good. I just want good content to keep coming and that is all.
Nick West ok
Nick West 🖕
@@neweraccount5615
Yay. I'm number 1!!!
If this were a post-apocalyptic RPG, Isaac Arthur would kind of be the best party member ever: He's a scientist, gunsmith, and a sharpshooter.
I like the way you integrated the sponsor into the end of the video this time; I usually tune out at that point, but it was smoother and more compelling this time. Thanks for a fantastic channel!
You could even say it was brilliant.
It helps that the sponsor is super relevant to the topic of the video, and is one that many viewers would value.
episode idea: Clone civilizations.
Civilizations that abandon their natrual procreation strategy and opt for cloning. Why would an ark ship worry about genetic breeding stock when they can just clone themselves?
Arriving at your destination, but have already lost your terraforming technology. Is akin to walking into a room and forgetting why you are there.
destination,,,proxima centuri or any of the keppler exoplanets?
Must we leave delicate Gaia?
Ed Thoreum, A colony heading to Proxima Centauri would still be watching current media produced on Earth. Episodes are just 4 years behind. Earth will still be watching the colony ship. The first colonies will be extreme reality TV shows.
And then forgetting to breathe!
Where are the other 10 million subscribers your channel deserves?
Honestly, The effort & work you put into your content is incredible, Your ability to communicate often complex concepts in layman's terms without diluting the underlying fundamentals is a hard call, but it's a task you excel at.
Thank you SO MUCH.
I love the generation ship episodes! Happy Arthursday everyone!
Arthursday? Is that like Arthur's birthday? When is the an Arthurversary of the channel then?
You are one of the most ambitious and hardworking UA-camrs I have ever seen. As much as I enjoy all of the free videos, you definitely deserve your own high budget series on a subscription platform.
You speak with the wisdom of the Omnissiah!
I've watched so many of these docs that when i hear a scientist without a speech impediment they don't sound legit to me. Excellent upload as always sir.
Just figured on the ride home: "arthur's day" can be read as "our thursday"
Indeed! ;o)
Makes me think of "Our [hope for humanity] Thursdays", which at least in my case is definitely true, I can only hope that we get radical life extension or mind uploading soon(ish) cause I'd hate to miss any of this
Lol true same xd
Can someone explain to me, why I havent heard of this channel till yesterday?? I am obsessed with tech, futurology and all that juicy scifi stuff, but youtube was hiding the BEST channel from me for over 2 years! INSTANT SUB!
When you talked about the Adeptus Mechanicus, I knew that you're tge best.
I don't know if you watch any anime at all but Macross Frontier does the Colonization Fleet thing very well to a point that you definetly see all the advantages of a fleet instead of the classic gigantic colony ship. Amazing video, was a great listen!
Amazing Concepts! WE LOVE THIS CHANNEL
I LOVE CITIES OF THE FUTURE!
nice video!
I remember when he had a dozen subs and actually gave me a pretty substantial reading list of SF classics . I read a third before my attention went elsewhere. There is no channel i could be more happy for. Cheers and GL m8!
Isaac meantions 40k I am happy now.
Isaac mentions that 40k have conflicting lore, heresy.
@@pepesmith2188
That 40k has conflicting lore is actually a point mentioned in 40k lore.
They never retcon anything because in-lore, everything you read is an authentic source found somewhere in-universe.
Them being inconsistent does not mean its wrong, it's just shoddy book-keeping or propaganda.
So who's the heretic now?
Colonizing the Oceans will probably have a Bioshock reference :)
Everything is cannon not everything is true.
He mentioned being a gunsmith... votes for Isaac to build a real-life bolter?
Thank you so much again for all these video essays, Issac. You inspire me far more with these talks than any sci-fi movie or show ever has.
Your work is one of a kind. Living, thinking and contemplating ahead of your time takes true passion, genius, ambition and curiosity. Great work and happy arthursday!
this is starting to become my favorite channel, finally these ideas are discussed rationally
IA: 'they will presumably care about maintaining the ship they are living on'
Me: looks around at self and earth 'hmm you sure about that'
Mario Perez, SFIA: So Funny with Intelligence Artificial?
Yep
Patrick Co We would make our ship the way it needs to be, currently we are reshaping the planet to better suit our needs, the problem is that there are waste products in the conversion process.
IA: Isaac Arthur
It made me think AI for a second to.
Let's start at "What is the natural state of the Earth that we should maintain?" The hot hell of the primordial times? The chilling freeze of the Last Glacial Maximum? What is the baseline for this tumultuous planet?
Am I the only one who loves the idea that Isaac is a crackshot?
That wascally wabbit doesn't stand a chance.
Better than most give him credit for.
I can't wait for the Planet Ship episode!
More than anything Arthur, your videos elucidate for me that there are people willing to sit on the side of a road videotaping themselves pretending to hitchhike just to sell the video to be used as a B-roll over a commentary. What a time to be alive.
Best day of the week: thursday
I've finally gotten the hang Thursdays
That's not even mentioning Critical Role livestreams, either
You mean Arthursday?
Thor's Day?
@@daschmitty in norwegian it litteraly is actually :) 🖖
Reminds me of Orphans of the Sky, one of Heinlein's great, but underrated, books. I love when this channel tackles this concept.
i like how considered you are about this videos :D
keep up your awesome work
Love the artwork and graphics in this episode. Your team continues to outshine itself with every episode. Thanks for making my day a little more "brilliant".
Plot twist: maybe the Earth is the "Million Year Ark"
But the earth just orbits the sun.
Wtf, did our engines die, or something?
@@chocchip4172 not true my friend. The sun is moving and so is our galaxy. We are like the dust swirling around an asteroid hurtling through slace. The earth has NEVER been in the same place twice.
@@tachiroakisu5128 So, in a way, could the whole galaxy be our 'billion year ark'?
Exactly, everything in outer space is moving.
So let's wait until some stars get closer to us; maybe we'll get lucky and there will be intelligent life on some of them. Patience may be our best way to go.
The earth is the arc. But we’re not going anywhere. We should know that the journey is the destination. We are on the arc and we are there. We are not going to live anywhere else and we shouldn’t want to. We need to make this work, not run from it.
One of the best channels on UA-cam. You're great at what you do man.
So, we should paraterraform a minor planet or small moon, then accelerate it towards another star system?
It's an option, and in fact a future episode in the series
@@isaacarthurSFIA cool. Riding Ceres, Vesta, or even Pluto to Proxima Centauri sounds like a good plan.
Might need to hollow it out a bit, though. Getting to a few percent C requires significant percent of your mass be fusion fuel. May have to park Pluto in Neptune's orbit during its closest approach, and leave it there for a decade or two to refuel and modify it.
Maybe just modify Triton instead if you want to do it quickly.
AncapFTW
This is more likely than building a new ship in my opinion..
@@KARANVANIYA for very long journeys, yes. It would require massive amounts of resources and several internal O'Neil cylinders to function the way we want it to, though.
For the first few colonies (Proxima Centauri for example, which would take less than a century to reach) you may want to just send multiple O'neil cylinder ships. The cost and infrastructure needed would be much smaller.
Let's start fund raising.. The Sooner the better..
I think "Generation Ships" is one of my favorite chapters. Good work! Keep them coming.
My week:
Monday
Tuesday
Wednesday
Isaac Arthurday
Friday
Isaac Arthursday FTFY
I love these videos. I have NO IDEA why this man doesn't have more subscribers.
This video is vital (as well as the others in this series) in a text based game i'm going to make, space colonization simulator of course. the player will have a set amount of starting points to buy some techs at the start, but they'll also be able to build and research these on the ride, so the game will be fairly difficult and at the end all the things they've done and built will decide the probability the colony will survive. not having a stopping mechanism will lead to an automatic loss at the end of the trip and they'll need to exploit research and construction times to make the ships they have more efficient, for example the cellular regeneration tech that'll remove the negative effects of radiation will take less time to research than the time it takes for all the embryos of animals along the ride to die, so you shouldn't buy the tech at the beginning of the game when you can just get it along the way and devote points to other important advances like bigger-is-better ships, fleets, and probes to get materials to expand ships along the way, begin terraforming the target planet, take pictures of the land and deploy rovers to increase the end-game survival chance, set up an option for the stopping system as discussed previously, and construct infrastructure for the colony.
Just wanted to Comment to say i love your channel so much knowledge in a really well presented way. sometimes i just play your episodes on my phone and listen while i perform other tasks. Continue the great fantastic work!!!
I love you Isaac!!
~are you sure about that?
GamePlayRaja
Looks like Someone got offended...
How to make the comment section jealous
@@KARANVANIYA not quite offended. Just triggered by nerd hunters.
@@KARANVANIYA ok im lost, why would he be offended?
These videos are long but rewarding. They always hold my attention.
10:26 Marksmanship and Gunsmith, the basic skill of every scientific field in movies, may I add plot armor usage and you are ready to go.
He's almost Gordon Freeman already
Thanks for another great episode. I haven't missed one since your very first megastructures video. Just incredible stuff!
Yeah it just uploaded, yeah I just began listening, and yeah, I auto-liked. Because it's videos like this that keeps my 'thought bubble' alive and well, so I can think of better things ahead than just my shitty, meaningless job. Thanks Mr. Arthur !
I always auto-like Mr. Arthur and I doubt that I will ever regret it.
L4br3cqu3 what is your job?
Mr. Arthur..you have a very easy listening voice. Thank you.
Gee, thanks Issac, say we could build a planet ship (aka death star) and then say we'll talk about it later.
Such a tease.....
I genuinely love your content especially ships and colonizing space
Thank you to S.F.I.A. Looking forward to the long format with John Michael Godier.
Thanks, I want to say it airs October 25th but I'd have to check and it might change, we recorded it the day after the livestream... actually went on for 4 hours but a lot will be trimmed I'm sure.
Isaac Arthur Trimmed? Man we love the long format. As y'all can see. 😁
It's always a pleasure to listen to your soothing voice discuss topics of incredible interest. My satisfaction is immeasurable, and my day is salvaged.
Drinks and munchies for my Son and I...Check...Happy Arthursday everyone.
Great episode. As someone who only replaces things when they stop working (i.e. years after a shiny new version comes out), I can 100% empathize with the 'using rituals to operate (or work around issues of) tech' folks.
Isaac, one day I really want to pay you a beer. From anywhere in the Universe. You deserve it.
The man with the voice. I'm so happy to have found you so early in your channel's history. It would surprise you how many times I've watched and re-watched your content. I don't have your brain, but I do appreciate the worlds you describe. Thank you for making the leap back when you were hopped-up on Sudafed recovering from your flu. You would make an awesome author, Arthur.
I like his r's
Ha I remember you being 8k subs... now it's 298k.
I have to say this thread is right, best day of the week.
I still remember getting an email from youtube, "X has subscribed to your channel" and thinking "What the heck is a subscriber?" :)
Another awesome SFIA video if for no other reason than my favorite stock clip @ 9:05
If we ever build an ark we better make sure a company like APPLE is never involved in making it. It won't last one generation.
Apple bad
Apple wouldn't be building it, because they don't care about innovation, which is what we need for stuff like this to happen.
I love the unique insights this channel brings, these video's amaze me time and time again.
Isaac you talk about the 2nd generation not being happy about their circumstances because they can't jump ship like we can back home. But I'm confused how do we jump of the generation ship called Earth?
Expert marksman and gunsmith... that wraskly-wabbit ain't gunna last 30 seconds... neither is anyone else. Love the series.
But will humans have evolved to live on a ship, rather than a planet, in the million years?
If they are editing their genes they can evolve into anything they prefer.
Isaac Arthur is my hero.
First heard the term Genius Loci from Harry Dresden of the Dresden Files. And yep it immediately made me think of AI controlling a building or park, or The Dark Tower series where a bullet train turns murderous and also decides it likes riddles and jokes. In the story Dresden has to treat this spirit very politely and try to figure out if it only wants him to leave, wants everything that enters its territory dead, wants him to never leave, or if it can be reasoned with or bargained with.
Yeah the island... wish he'd get the next book out already.
It feels like every time I watch any of your episodes, my brain explodes, from all the stuff I realize that we usually don't even have to think about. But is necessary to consider when/if these endeavors are going to be successful.
"If you picked the hundred or so cultures that have existed and that most valued knowledge and learning, the overwhelming majority of them would be around right now."
Depending on how you define "culture," I'm not sure that's true. (Not just because of anti-intellectualism being in vogue in the USA, either.) Plenty of so-called "primitive" cultures show a distinct interest in learning and knowledge; they just don't have the knowledge base that eight thousand years of centralized grain-farming states can bring you. Even limiting it to technical/scientific knowledge, you'd again have to be _very_ careful with your definitions to make that a true statement, and it would probably end up being a nearly circular statement when you consider how our definitions of "technical" and "scientific" are bound up in our culture's understanding of science and technology.
That said, I'd agree that the cultures which stick around tend to be the ones which care about knowledge and learning. Zealous ignorance can propel you forward for a few generations, but if you're not isolated from others who practice more reality-based versions of your ideology (or, for that matter, of other ideologies...heck, even equally-zealous forms of other ideologies can cause problems), you're bound to either fall apart or start accepting the importance of empiricism once again. 2+2=5 doesn't even remotely work unless Oceania, Eurasia, _and_ Eastasia agree to it.
Timothy McLean
Considerable argument..
It is certainly hard to define, but I'll appeal to common sense and meaning here, most of human history literacy was the exception, not the norm, and houses did not own many or even any books. Now, we have casual access to knowledge and every aspect of our society stresses the importance of learning. Even those groups which tend to decry one topic or field usually also stress learning in general. Alternatively, while we know a lot of our predecessor culture greatly valued knowledge, we know it mostly from a handful of scholars, a tiny minority of the population, who were probably over-emphasizing it's importance to their overall culture because it was so important to them personally and usually their social circle.
Society benefits as a whole when we individually overemphasize what that individual is passionate about. I do not place great emphasis on art but Salvatore daili enriched us all with his art. Same is with science. What practical value is there in knowing about the Higgs field? Black holes? Or even antimatter drives? But that is not to say that we are not all enriched by Higgs and all the work done by his colleagues in the scientific community.
The best part of every Thursday. Waking up to a new Isaac Arthur video. A fantastic episode as always Isaac and crew, learned new things today as always. Your videos have always been so enlightening.
I was thinking about different hyper robust methods of preserving high density data, so I presume you could use something like platinum-iridium plates, but we know that the standard kilos absorbed hydrogen so has a propensity to slowly deform, so over a million years there will be data loss as entropy deforms micro etching over a million years. So maybe some sort of microscopic etching on mono crystalline silicon? It’s funny as my wife’s mother has a first run Dire Straits Brothers in Arms and it does not look in good condition and these were supposed to last *forever*. Anyone better informed on how to store data (hard write once read very many) for a million years plus, in a very compact form? I remember at HP labs storage research that even the most bullet proof SSDs have a finite number reads before a breakdown, a million years needs a fair bit of stability and have sufficient data density to store something like multi exobytes of data.
Julian Williams I note that some genes in your cells are the same after 3 billion years and millions of replications.
crystals, there are some prototypes of "glass/diamond" based memory mediums that things last very log
Another awesome video! Thanks!
I truly look forward to Thursday
This is the only channel on youtube that I can say that every video has blew my mind
Isaac, you got one thing backwards - it seems counter intuitive, but cultures actually hold more together in smaller populations or populations that have left their original homeland. Linguists discovered this trend - populations that leave go through less linguistic and cultural drift than the original population - both populations still have divergence from the origin, but the original (or higher population) changes faster. This has been shown to be true of American English versus British English, Dutch farmers in Africa, migrating tribes in Africa, and Siberian populations. Okay, it's not terribly important, but it's a factor in planning a future civilization.
Wait wait wait, did you really say that technology is allowing us more free time each day? Seriously?
take out social media stuff and yeah ya do kiddo, also no youtube
28:40 shiet, love the mix between the image and the music , really well done.
Happy Arthursday everyone! In before 300K subs
Why am i watching this at 130 AM on a school night??? Man i love this channel
Good hunting,from now on,always good hunting.
I think it would be cool to have a netflix series about a million year ark where every episode, or every few episodes are about a different century on the ship. Like going through the history of the ship on its million year voyage, with wars and geopolitics but it's on a massive rotating habitat colony ship.
Yeah. It would be hell to produce, since you need completely new cast for each episode. Doable, but unlikely...
Here's a concern I thought of: discovery back home. Say a ship sets off and a few years later, a signal catches up, saying they cured cancer, but the ship doesn't have the facilities to make it. What should be done with that info?
@JIM LUNN Could work, but after long periods of time questions will be asked.
DrearyPlane8
Hmm.. Sound Logic.. But I guess those issues arising out of cancerrous developments would already have been solved using nanobots already present in the body of every colonist.. By getting an updated version of cancer definitions just like any modern antivirus software getting an update of virus definitions..
@@KARANVANIYA Cancer is just an example, this could apply to any critical example
It would give them another reason to set up a civilization on the new world to develop an updated habitat.
I did not know about SIFA.org, but I am blown away and excited to access the resources there.
Let's do this thing.
Awesome stuff as ever... I'd never even considered mass loss as a limitation on long voyages. Up there with radioactive decay limiting suspended animation as a simple but critical issue.
Good video, but you don't mention anything about Intergalactic travel. Since the distance to the Andromeda Galaxy is 2.5 million light years away, any journey there is going to be a whole extra order of magnitude longer and more difficult than any trip within the Milky Way. If it takes a typical colonial fleet a million years to cross a mere 100,000 light years (~10% c), then it's going to take 25 million years to make the intergalactic crossing. And if the ships can only move at like 3% or 2% of light, then we're talking between 83 and 125 million years!
This starts to look like geological time. Maybe for this kind of journey you would want some kind of "planet ships", like you briefly mention?
I think trying to figure out intergalactic travel at this time is like amoebas 3.5B years ago trying to plan out SpaceX.
We haven't colonized the solar system, much less the galaxy. By the time we, or some other life form or it's AI creation does, things will probably operate so differently or beyond our understanding at that scale we might not comprehend it any better that one of your cells understands or is aware of your moving to another city or continent.
Most people don't even understand relativity, and given the speed of travel, galactic colonies will likely genetically diverge so much from the original species so as to be something else entirely. They will be far enough apart nobody would have any idea how different colonies are evolving on the other side of the galaxy because it takes longer than the age of the species to send the data.
What kind of super organism could handle galactic trade or even communications when light speed communications take longer than the age of a species? Whatever unimaginable super organism that is, it it probably what it takes to figure out and make intergalactic travel possible. And most of the subspecies that make up it's galactic scale body may be none the wiser.
He already has a video on intergalactic colonization.
Yeah if there is no warp drive then such journey will be made either by planet size ship or by some very small ship with powerfull ai which will bring to the destination maybe only fozen brains and then clones bodyies in new galaxy and wake up passengers at destination.
@@TheJeremyKentBGross Might be something only robots can do! It really seems like they have all the advantages, aside from not existing. But if the giant AI we keep talking about DID exist, and could design and build stuff, it seems like the perfect candidate to take over the galaxy! It's not in a hurry, can live in vacuum, can cheerfully and patiently eat up asteroids and rogue planets and turn them into MORE AI, more robots, more ships, and a globe of purposeful intelligence slowly spreads out from wherever the starting point is.
@@leonardpearlman4017 Precisely. Although there might be more powerful paradigms than that we can't fathom yet.
This is what I've been looking for a long time.... Can't thank you enough...
A H! I CAN'T WATCH IT NOW! I have a relativity test!
Happy Arthursday everybody!
Hey, Isaac, I love all your videos. You deal with all the problems of space exploration/colonization/industrialization with refreshing intelligence. But, unless I missed an episode, there is still one video I am waiting for you to make: what will future spaceships really look like? Spaceships in movies look really cool, with wings and cockpits and multiple engines and such, but are such spaceships really practical? NASA's Nautilus-X design, after all, does not look anything at all like a spaceship that might appear in Star Wars. Please, I'm begging you, do an episode on spaceship design. I'll sing hosannas to you if you do.
I was watching that last bit of rotating habitat video when I noticed something. The clouds. Clouds form on planets because the upper levels of the atmosphere are cooler, heat loss to space and radiant warming of the ground. On the inside of a cylinder that is not going to happen without a heat sink of some sort running up the axis of rotation. Just my .02 worth.
I believe the clouds would have to be an artificial enhancement.
Good point.. But consider this.. The Central volume of the atmosphere in the rotating o'neil cylinder will be least dense due to the centrifugal force. So the raising clouds are likely to create an effect similar to that in earth atmosphere due to nagative density gradient towards center.. Although this may sound logical, the different curvatures of living surfaces of earth and o'neil cylinder is Worth considering. All the radiation from clouds can not escape the o'neil cylinder under normal circumstances..
karan vaniya This works fine for warm clouds of water vapor, but without cooler air to rise into no condensation tales place, no cloud.
History in the making. Mark my words, Issac Arthur will go down in history.
I just found your channel WHAT THE HELL WAS I DOING WITH MY LIFE
@ 5:26 My mind was blown. I don't often comment, if i do, it can often be negative, i apologise. @ 5:39 the philosophical impact on me personally regarding my life, was immense. I immediately pieced together so many motives and understandings of those around me growing up. That old chestnut, "you will become what you surround yourself with" all of a sudden makes sense, and then i'm faced with the challenge of finding the guts to change my life, change my friends, change my habbits and those i associate with, change my dreams and ambitions, change the decision making matrix of my mind that has been telling me this life is shit, this world is shit, why bother... It's almost as if all of a sudden, i understand why... Thank you Isaac Arthur and the SFIA crew...
Has anybody ever thought that maybe living on a sterilised ship for extended periods of time might cause unforeseen issues, I've always thought we might need a biological ship with an ecosystem with some flora and small fauna in order to survive adequately after all we evolved to be in environments like that, these environments might have an impact on our micro biome and such.
Like the quarians in Mass Effect
I could see a population of hyper-allergenic colonists, but this is nothing irreversible. You can either already incorporate it in your ship or cure it with modern medicine.
You beat me to this comment. I was thinking of the Quorians from the Mass effect universe. They had severely weakened immune systems after spending 1000s of years in space after losing their homeworld to an artificial intelligence.
@@ryanrosen740 ha...you also beat me to my comment. Lol.
like chromosomes doing the transl0cation thing?
The most amazing channel online, there is enough material here to keep me amused until we build our first dysan sphere
My opinion:
For security reasons, we must cluster the ring, because of asteroids.
Each group of cluster must be the same as the other, with food...
Embryos can be frozen.
Robots can work for the ship.
space is a giant freezer?
This is an interesting concept. Having generation ship fleets that go out in succession chronologically (like timed to be released every 30 years), would enable better updates and communication with the original launch location (like Earth) than if one large ship goes out only.
Here is a good question, what about making these Arks not a vehicle for the journey but as a destination themselves?
I mean what about the a species, or part of a species, who choose to becoming nomadic in the stellar terms? A massive colony fleet that has the sum total mass of... Jupiter and it's system of stuff?
Maybe they just had enough of their parent civilization (K2) and said good bye. Aimed to the galactic edge and set course for the nearest other galaxy knowing it would be so long for their home species to even WANT to go that far as to basically make them a non issue. They have a fleet of ships but each has the Surface area of Australia for example JUST for living and biological ecosystems.
What would their culture be like? I mean there is no mission so much as, "F*^K this S!YT, I'm out!" is a mission. just a roaming fleet designed to have everything they could need and a population around Earth right now with room to grow.
Would they try to control their own evolution in that case? The point is to GTFO from the galaxy so they are unsure what they will find in the direction they are traveling so would they just allow evolution to go on about it's marry way and jsut ensure the whole of the fleet can still breed with the other members (at worst making it sub-species). I mean the big point seems to be, "Stay on Target!" but what if the target it not the destination but the journey itself, would that change the equation so to speak?
For this example lets use Humans, K2 Pilgrims said "We are going to go over in this direction and you guys can sit on it and rotate!" because... they are Bronies or something (the cause is not really the point) and are kind of shunned by their civilization. They pooled their resources for jsut a colony ship but every time they set up shop to colonize they realized people where only a few decades behind them and had to move again. Over time this allowed them to get that mega fleet going but they finally had it and some Nutter named Daniel said, "Screw this galaxy! They are going to keep expanding it is so i say go big or go home!" and plots a course out of the galaxy pointing to... pick another galaxy.
What would happen? Oh and assume this guy actually convinced the people he was right so it is now a thing.
That would be an interesting society. Maybe it's thirty million (or thirty billion) people, planning to live between stars or galaxies forever. Their goal wouldn't be another planet or even another star, though they might stop at (or have their drones stop at) various planets, stars, and interstellar objects for materials and to study if it's interesting enough. If they need or want anything informational from those left behind, they trade advance exploration info for it.
Maybe they're not even heading for that other galaxy, at least not yet. Nope, they're just knocking about THIS galaxy for the next half million years, a decade or two ahead of the colony fleets. Only when this galaxy fills up do they strike out for the Magellanic Clouds or Andromeda or wherever.
A more massive ship/fleet means there is less fuel available. Minimal colony ships could go much faster and get ahead of your Jupiter mass fleet.
Maybe you could launch into the inter-galactic void. Anyone else choosing to colonized the void is not likely to want to be near your colony. Maybe pirates who were descendants of people who wanted to be alone but changed their mind.
Right well, how would their society, their culture change?
The idea is to jsut get away from their species. Maybe it is because of presecution (misspelled) or they have a life style the main species can not allow (No idea and the specifics are not really important). They jsut want to stay away from the rest of their species as much as they can.
They choose to leave the galaxy behind WELL before it is filled to make sure they are left alone after they stop in systems time and time again for new material and find a coming colonial fleet.
They basically give up on living in any real form of gravitationally bound area, sending fleets to gather materials but past that their civilization is jsut nomadic.
Imagine how they would change. Would they try to control their evolution? Would they try to make new ecosystems that can be in microgravity? Would they alter themselves to be more at home in lower and lower gravities over time?
I love Sci-fi btw. Hence i think on this. I am also a HUGE Warhammer 40k fan (Adeptus Mechanicus for life!)so it always makes me smile when Issac mentions them.
Something i wondered, Universe-class Mass conveyors (If designed properly) could act as mobile stations. get a nice sized fleet and just head out. A few millenia later a race of Abhumans come around totally adapted to void life and masters of void craft.
You know, that sort of 'mission' of detaching from an interstellar or even K2 Galactic civilization could become a culture in and of itself. Imagine a sub- _'cult'_ -ure of several million to several billion, deciding to congregate at a white dwarf at the edge of the galaxy, building a dyson swarm, then suddenly converting all swarm elements into components of a Shkadov thruster. That 'escape' would take a long time before they were out of practical reach, and would attract attention and no small amount of 'converts' over time. Whether it turned into a full-fledged superstitious cult or not, the act of 'ejecting' from the bonds of a massively interlinked civilization could become the focal point of interest, a non-technical hub to which all the technical spokes attach.
With enough time this will happen.
The overwhelming majority will be living in space habitats anyways by then so it won't be that much of a jump.
Isaac Arthur.
The real Gordon Freeman.
Gun toting scientist and all round baddass.