Exo-Stellar Civilizations

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  • Опубліковано 29 вер 2024
  • Our future in the galaxy is typically envisioned as tied to the stars, be it on planets orbiting them or vast megastructures fueled by the alien suns, and yet the true future of humanity might be to dwell in the vast gulfs between the stars or even in a galaxy in which those stars have ceased to exist.
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    Credits:
    Exo-Stellar Civilizations
    Science & Futurism with Isaac Arthur
    Episode 281a, March 14, 2021
    Written, Produced & Narrated by Isaac Arthur
    Editors:
    Jason Burbank
    Jerry Guern
    Keith Blockus
    S. Kopperud
    Cover Art:
    Jakub Grygier www.artstation...
    Graphics:
    Bryan Versteeg
    Fishy Tree
    Jeremy Jozwik
    Katie Byrne
    Ken York / ydvisual
    LegionTech Studios
    Sergio Botero www.artstation...
    Udo Schroeter
    Music Courtesy of Epidemic Sound epidemicsound.c...
  • Наука та технологія

КОМЕНТАРІ • 389

  • @RCAvhstape
    @RCAvhstape 3 роки тому +266

    "Avoiding law, taxes, or self-replicated kill swarms seeking to wipe them out..." Story of my life.

  • @johnmalone5693
    @johnmalone5693 3 роки тому +10

    I remember when all we had in UK was three tv channels and Sunday night TV was special. Well now it's special again thanks Isaac!

    • @revenevan11
      @revenevan11 3 роки тому +1

      These episodes sure are special! (Usually it's Arthursday though;) )

    • @atashgallagher1631
      @atashgallagher1631 3 роки тому

      yea yeay yea, tell it to the 16 quintillion human sims in the birch world in a few trillion years.

  • @JB52520
    @JB52520 3 роки тому +1

    Drink: Check.
    Snack: Check.
    ADD meds: Oops. What did I just watch?

  • @SpazzyMcGee1337
    @SpazzyMcGee1337 3 роки тому +1

    Is this the first time that Isaac has referenced Orion's Arm?

    • @Deadlyish
      @Deadlyish 3 роки тому +1

      He mentioned it a few times in older episodes

  • @UncleRice00
    @UncleRice00 3 роки тому

    I would still maintain that an Exo-Stellar civilization would be very hard to detect. There are brown dwarfs in our local stellar neighborhood we have only recently discovered, so a few thousand O'Niell cylinders may be too cold for us to detect currently.

  • @dream.machine
    @dream.machine 3 роки тому +474

    Issac Arthur is going to be mentioned in future archives as one of the most powerful futurists and theorists, and a great all around person.

    • @iamjetflight
      @iamjetflight 3 роки тому +14

      Amen, brother!

    • @meneither3834
      @meneither3834 3 роки тому +44

      We would use the word "Influential" instead of "powerful" but yes you are right.
      Although vast majority of what Isaac is talking about isn't new.

    • @jgr7487
      @jgr7487 3 роки тому +17

      he's already among the greatest SciFi writers in Wikipedia
      edit: Isaac Arthur is a futurist, not SciFi writer. my bad. he doesn't even write stories.

    • @randomguy4167
      @randomguy4167 3 роки тому +29

      @@meneither3834 It’s very difficult to have a completely original scientific idea that no one has considered before.
      Isaac does great work by popularising and discussing these ideas.

    • @meneither3834
      @meneither3834 3 роки тому +18

      @@randomguy4167 and concentrating them too.

  • @harbl99
    @harbl99 3 роки тому +268

    "...avoiding the law, taxes, or self-replicating killswarms..."
    Ah yes. That little-remembered class of antagonists in western movies: the killswarms.

    • @davidegaruti2582
      @davidegaruti2582 3 роки тому +52

      "There are two inevitable things : selfreplicating killswarm and taxes"

    • @rexmann1984
      @rexmann1984 3 роки тому +15

      This is the way

    • @nandodando9695
      @nandodando9695 3 роки тому +7

      @@rexmann1984 Clicking of agreement

    • @KatyaAbc575
      @KatyaAbc575 3 роки тому +12

      On a real note, its a real shame that selreplicating killswarms are rarely adressed in most of science fiction.
      Its such an efficient way to kill off your enemies.

    • @davidegaruti2582
      @davidegaruti2582 3 роки тому +3

      @@KatyaAbc575 yeah , they would be efficient , but also self destructive :
      Even if tgey succed in wiping them out , what do you do afther ?
      And what if one of the bots has a copying error and starts attacking everything undiscriminatly ?
      And what if your enemy launch a killswarm of their own ?
      Killswarms are in that sense a lot like plagues and biological warfere : if you're an individual intrested in taking a nation down absolutly go for it , but in any other circumstance it's risky ...
      But there could be a story abt a small technologically advantaged force taking down a large spacefaring empire thanks to kill swarms , since you can make countermeasures to one entering in your o neil cilinder , but what appens when you have thousens spread all around your empire ?

  • @davidgood1318
    @davidgood1318 3 роки тому +31

    There was a story in Analog quite a while back about a civilization in the Ort cloud that ran a high-energy-use society by living one day and then hibernating for years while automatic mechanisms collected energy and matter. Multiple colonies had agreed to live in-synchrony, so even a multi-year low-energy transit between far distant colonies would effectively happen "overnight".

  • @johanwallin1256
    @johanwallin1256 3 роки тому +67

    Isaac Arthur; a steady star of the mind to steer by, in the darkest nights in the turbulent seas of humanity.

    • @shep9231
      @shep9231 3 роки тому

      Dude, that is profound... wow...

  • @heiskanbuscadordelaverdad8709
    @heiskanbuscadordelaverdad8709 3 роки тому +108

    Imagine living near a star
    -This post was made by the exo-stellar gang

    • @armara70
      @armara70 3 роки тому +1

      👏 👏 👏

    • @bigmanjames4394
      @bigmanjames4394 3 роки тому +6

      Imagine living in a galaxy lol.
      -This post was made by the exo-galactic gang.

    • @nowdefunctchannel6874
      @nowdefunctchannel6874 3 роки тому +2

      Imagine living in the universe
      -This post was made by the exo-dimensional gang

    • @daerk420666
      @daerk420666 3 роки тому +3

      imagine living...
      -which gang made this?

    • @69Kazeshini
      @69Kazeshini 3 роки тому +1

      @@daerk420666 undead gang

  • @mjk9388
    @mjk9388 3 роки тому +56

    This episode reminded me a lot of Sid Meier's Alpha Centauri expansion with the Nautilus Pirates. By starting out in the void of the ocean away from everyone else, you started with an immense area to expand and it was much harder for potential enemies to even get to you. Most times you would be such a massive empire by the time first contact was made that you could steam roll over any other civilization. I see Exo-Stellar Civilizations with a similar potential.

  • @spaceeagle832
    @spaceeagle832 3 роки тому +255

    Never grabbed a drink and a snack this quick.

    • @revenevan11
      @revenevan11 3 роки тому +8

      Video watching speedrun: drink and snack %

    • @fluffysheap
      @fluffysheap 3 роки тому +4

      I just had breakfast, I don't want a snack

    • @alexandernorman5337
      @alexandernorman5337 3 роки тому +5

      If the videos come on early enough then I might have a coffee - black - and that's it.

    • @jwadaow
      @jwadaow 3 роки тому +10

      @@alexandernorman5337Tea, Earl Grey, hot

    • @annoyed707
      @annoyed707 3 роки тому +1

      The last time I grabbed a drink and a snack that quickly I still wasn't early enough.

  • @ZearthGJL
    @ZearthGJL 3 роки тому +50

    It's currently 0:29 AM here in Singapore. My question: "What Sleep?"

    • @jimmywrangles
      @jimmywrangles 3 роки тому +7

      4.56am Australia, I feel your pain.

    • @sriramradhakrishna878
      @sriramradhakrishna878 3 роки тому +5

      Fell asleep on my desk at 3am mid-video here in India. Woke up at 8 and just continued watching xD

    • @fedonia5610
      @fedonia5610 3 роки тому +1

      4:19 AM

    • @abellator7560
      @abellator7560 3 роки тому +1

      00:52 am in west coast usa.
      answer I don't know either

  • @prospectorpete3738
    @prospectorpete3738 3 роки тому +25

    An American city took two years and spent 500k to build a bike rake. Megastructures are a while a way

    • @RobinTheBot
      @RobinTheBot 3 роки тому +4

      It took nothing to build it, all that money was for the vacation time for the planners. Wouldn't want them to get stressed would you?

    • @MrNote-lz7lh
      @MrNote-lz7lh 2 роки тому +2

      Yep. If you want a country to do something you should look to China. I have a feeling corporations will just keep on getting more and more powerful in the US.

    • @MrNote-lz7lh
      @MrNote-lz7lh 2 роки тому

      Yep. If you want a country to do something you should look to China. I have a feeling corporations will just keep on getting more and more powerful in the US.

    • @leonardpearlman4017
      @leonardpearlman4017 Місяць тому

      @@MrNote-lz7lh This most OBVIOUS and essential thing is NEVER mentioned on this channel! Not by the host, and by very very very few of the guests. Most of us seem to be thinking that there will one day be some kind of king of Apps, that we'll just point and click and then presently we'll be mining asteroids... and SO ON. The idea of a mass organization occurs to NOBODY here, but you. This is a great responsibility, I hope it is not too much for you to bear! LIBERTARIANS in SPACE is what we're talking here, week after week. I do love the videos I have to say, but all the discussion is basically insane.

    • @carlbell2226
      @carlbell2226 Місяць тому

      Exactly the same everywhere where did the money go?

  • @fvckyoutubescensorshipandt2718
    @fvckyoutubescensorshipandt2718 3 роки тому +62

    This makes me wish there were city-builder games based in space. SimCity and it's clones are so 20th century.

    • @TheStevedie
      @TheStevedie 3 роки тому +9

      Me too. One of the best games currently is Surviving Mars. It can be easy (like, super easy) or balllllsssss hard...put like 300 hours into it. If you like strategy and city builders and haven't played it, buy it.

    • @Modern.Millennial
      @Modern.Millennial 3 роки тому +4

      Stellaris, galactic civ iii, endless space 2 et al

    • @cynicalanon8784
      @cynicalanon8784 3 роки тому +13

      @@Modern.Millennial none of those games are city builders, they are turn or grand strategy. Personally what i dislike about them, is that they fall incredibly short from truly depicting the megalomania and scale of true interstellar civilizations.

    • @fvckyoutubescensorshipandt2718
      @fvckyoutubescensorshipandt2718 3 роки тому +5

      @@cynicalanon8784 Yeah what I had in mind was something like the space station portion of Anno 2205, but building self-sufficient O'Neil cylinders or something similar in interstellar space (hard mode, easy mode it's orbiting the sun between Earth and Mars). End game power plant would be an artificial black hole, with vanilla solar panels to start. But the key is to make it not "map" size limited, but limited by only how much ram your PC has like in modded versions of Factorio (and that is quite a struggle and takes years just to use up 16GB). One cylinder done = time to build another as a trade outpost.

    • @Sombre_gd
      @Sombre_gd 3 роки тому +11

      Try Dyson Sphere Program. That's new game (early access) where you can build your own Dyson spheres and swarms :)

  • @NoahLavineASP
    @NoahLavineASP 3 роки тому +76

    My dad introduced me to your channel. One of our favorite pastimes is to smoke a joint and launch ourselves into the future. Keep up the good work!

    • @u92element4
      @u92element4 3 роки тому +12

      what about a drink and snack

    • @Hibrass
      @Hibrass 3 роки тому +11

      @@u92element4 That probably follows the Fatty... 😁

    • @FrankFrankly711
      @FrankFrankly711 3 роки тому +8

      A great father/son activity!

    • @escape1777
      @escape1777 3 роки тому +2

      @@u92element4 nerd!

    • @u92element4
      @u92element4 3 роки тому +3

      @@escape1777 hehehehe

  • @unintentionallydramatic
    @unintentionallydramatic 3 роки тому +13

    The original Borg (called Posbi, i.r Positronic-Biological entity) from the series Perry Rhodan usually live on so-called Void worlds because they don't like being where other beings would stumble across them.
    They could easily operate in pure darkness, but they tend to put a few thousand artificial mini suns up for aesthetic reasons.

  • @tariqahmad1371
    @tariqahmad1371 3 роки тому +18

    Got to watch it on nebula yesterday, on my birthday! Thanks it’s always a great SFIA Video!

  • @EduardoRodriguez-jm8sz
    @EduardoRodriguez-jm8sz 3 роки тому +16

    Orion's Arm finally got mentioned in this channel! I wondered if he knew about it. It is a very recommendable collaborative sci fi universe for anyone who likes Isaac Arthur videos.

    • @Pyxis10
      @Pyxis10 11 місяців тому

      He's listed as a person who wrote for the scenario on some oages and in it's authors list.

  • @LucasDimoveo
    @LucasDimoveo 3 роки тому +42

    I'd pay big money to see you, Lex Friedman, and Ben Goerzel on a podcast together
    I wonder if these future civilians will be similar to the nomadic civilizations of central asia. Bouncing back and forth in the spaces between solar systems.

    • @dylanneely91
      @dylanneely91 3 роки тому +5

      Thanks. Now I'm imagining a space khan discovering the equivalent of super bows & arrows and siring a nonillion people while leading the conquest of a dozen dyson swarms.

    • @cartermclaughlin2908
      @cartermclaughlin2908 3 роки тому +1

      Bouncing is a liberal word. Isaac's scenario sounds like there's nowhere left to go by the time he thinks this is worthwhile. I do wonder how densly populated interstellar space could be. I imagine a brownian jiggle of drifting habitats. Interesting scenario to create cultures in and contrast them with your typical belter folk. I'm picturing a ringworld feel of radically hetrogenous people all scanning for resources while hiding from pirates.

    • @nuffaildaniaelle977
      @nuffaildaniaelle977 3 роки тому

      @@adriandeenedy6363 maybe

    • @nuffaildaniaelle977
      @nuffaildaniaelle977 3 роки тому

      @@cartermclaughlin2908 maybe too small becuz space between every planet or stars are quite vast.. Sooo it may become just like 1/4 asteroid belt

    • @BurnDoubt
      @BurnDoubt 2 роки тому

      Lex needs to interview him for sure!

  • @UNSCrearadmiral
    @UNSCrearadmiral 3 роки тому +2

    Quick question...
    For an sci-Fi planetary defense, it more power efficient to use something like a rail gun or a mass driver over a large Laser? I’m in an arguement with a friend, I’m in the camp for a mass driver however he’s all about DEWs.
    I know both should be more effective as an orbital platform rather than a ground side installation, which is where we are basing our argument off of.
    A mass driver (as so far as I understand it) is limited by travel time primarily however the larger the mass you are accelerating the more power you need. And your effective range would be largely based up computational limits, but would be easy to dodge at ranges where it could take up to a minute or more for your projectile to arrive on target. A Laser or similar energy weapon would not have this issue, but as so far as I understand lasers, the farther out you have to reach, the power requirement starts growing exponentially, although I could very well be wrong on that.

  • @hanklestank
    @hanklestank 3 роки тому +8

    Alastair Reynolds Revelation Space features some neat extra solar civilizations (and is just a fantastic series to boot).
    Same with Peter Watts’ Blindsight (which is probably the best hard sci fi novel I’ve ever read).

  • @davidgates851
    @davidgates851 3 роки тому +22

    I havent been this early since my vacation to Pangea.

    • @annoyed707
      @annoyed707 3 роки тому +4

      "I havent been this early since my vacation to Pangea." That's still not nearly as early as the folks who set up the hotel.

    • @Cherrynasb
      @Cherrynasb 3 роки тому

      How was that vacation? I was thinking of visiting myself?

    • @davidgates851
      @davidgates851 3 роки тому

      @@annoyed707 Actually i went camping.

    • @davidgates851
      @davidgates851 3 роки тому

      @@Cherrynasb nice, never saw another person. The landscaping could have used a bit of clean up but very private.

    • @derkanal1908
      @derkanal1908 3 роки тому

      Don't wanna be this guy but:
      If you're talking about the super continent Pangea, how would that work?
      Its one big landmass, saying you made a vacation on Pangea is like going from Colorado to Florida and saying you went on vacation in America.
      Maybe you're talking about traveling back in time to the time when Pangea still existed but then the joke wouldn't really work.
      idk

  • @SmartK8
    @SmartK8 3 роки тому +24

    Future: Coronal gas grazed by a coronal cow made into a coronal steak.

  • @bradhaaf4749
    @bradhaaf4749 3 роки тому +2

    15 minutes in, still talking about hydrogen/fusion..... despite doing a actual video on future Fusion and hydrogen he always finds a way of talking about it and every single video... I can't even remember what the video supposed to be about

  • @folterknecht1768
    @folterknecht1768 3 роки тому +5

    Ex-wifes, you forgot ex-wifes --- "...avoiding the law, taxes, or self-replicating killswarms..."

  • @natecw4164
    @natecw4164 3 роки тому +13

    Woohoo, I love the colonization/civilization episodes!!

  • @andymorgan2950
    @andymorgan2950 3 роки тому +3

    Love this channel but this session has been speeded up. Too much information way too quick to ingest and enjoy. The slow place is enjoyable and gives the listener the time to contemplate the wonderful content. Slow down Issac for us dumb folk please

  • @kingmasterlord
    @kingmasterlord 3 роки тому +4

    a square kilometer per household sounds sufficient, live on the back of the mirror.

  • @ghrey8282
    @ghrey8282 3 роки тому +4

    I was so fascinated that I didn’t even notice when my appetite fell down an unstable wormhole and disappeared.

  • @ManiusCuriusDenatus
    @ManiusCuriusDenatus 3 роки тому +6

    Sunday episode: Grab my coffee and a snack! Thanks Isaac!

  • @drunkenkot
    @drunkenkot 3 роки тому +3

    I'm glad I paused this to make a grilled cheese, fill a bowl with leftover salad, then grab a bottle of seltzer.

  • @justanothergirl__
    @justanothergirl__ 3 роки тому +8

    Never been this early! Hype! :D

  • @elliotsmith9812
    @elliotsmith9812 3 роки тому +2

    If it were possible to convert heat directly into laser light (see Sun Diver) an interstellar craft would hide their heat by beaming it out in one direction where observers are unlikely, or so far away they cannot affect your foreseeable future.

  • @genkidamatrunks6759
    @genkidamatrunks6759 3 роки тому +6

    No time for a drink and a snack. Let's goooo!

    • @alexandernorman5337
      @alexandernorman5337 3 роки тому

      Don't worry, most people consume more calories than they need anyways. I never get a drink or snack.

  • @k.sullivan6303
    @k.sullivan6303 3 роки тому +1

    Interesting... Escape velocity of our galaxy.
    So much to learn.
    So, a very fast ship in the future, an asteroid or other bodies would have to reach this same velocity to escape the Galaxy just the same as rockets today have to reach a certain velocity to escape the atmosphere of the earth or earth's gravity?

  • @vicenteaello
    @vicenteaello 3 роки тому +3

    May All the Cosmos bring peace and love to you and your loved one .. Thanks for your info and vision !!

  • @sirgog
    @sirgog 3 роки тому +1

    Hey Isaac, 01-April is coming.
    You should post a video on April Fool's Day. Serious topic, played straight except for one thing.
    Colonizing Uranus, but - ah - 'accidentally' mispronounce it

  • @jbeihl1
    @jbeihl1 3 роки тому +4

    I just a TNG Season 6 episode where they encounter a Dyson sphere. Pretty cool

  • @astralshore
    @astralshore 7 місяців тому +1

    I love how Isaac keeps saying “you’re gonna need this and that to build your O’Neill cylinder” like I’m actually going to be doing that. Thank you for the undeserved confidence boost 🙏🏻

  • @Inertia888
    @Inertia888 3 роки тому +3

    Ah yes, another great day to have a drink and a snack with all of my brothers sisters and cousins of the great Isaac Arthur family! ☕ 🍰 🚀✨

  • @caymancrypto8151
    @caymancrypto8151 3 роки тому +2

    Issac: has this video been sped up? Seems you are talking 1.15 faster 🤔

    • @davidgates851
      @davidgates851 3 роки тому +1

      Thats because he is recording at 1 knot.

    • @agalah408
      @agalah408 3 роки тому +1

      Maybe he just promised his wife he would go shopping with her and he's just trying to get through it a bit quicker

  • @atashgallagher1631
    @atashgallagher1631 3 роки тому +1

    lets start tapping dark energy and just stop the expansion of the universe by depleting the dark energy.

  • @madmanpete
    @madmanpete 3 роки тому +2

    here's an idea thats been bugging me last night : Aliens that build illusory walls around a system with sentient life making no contact and treating it as a sanctuary as they harvest the rest of the stars.

    • @Leo-ip3yx
      @Leo-ip3yx 3 роки тому +1

      Pretty impossible. Illusory walls would easily discovered by any civilization like ours because of our powerful telescopes. Illusory walls wouldn't be able to replicate fake planets around all the fake stars (light dimming) and gas composition, infared, etc all at once for all the stars we can observe that with telescopes like Hubble. Its just too much to fake let alone construct. They'd also have to create illusory gravitational lensing and a ton of other things.
      Much less effort to annihilate the civilization or just do nothing because they wouldn't be able to lift a finger even if a early space civilization like ours discovered some super mega civilization is literally harvesting whole stars.

    • @madmanpete
      @madmanpete 3 роки тому +1

      @@Leo-ip3yx hypothetically, maybe our system was located inside their star farm. they harvest and grow stars at the same time while our low tech asses are just sitting in the middle of it and they just dont want to bring harm to us so they build an illusory picket fence out of courtesy.

    • @fanuluiciorannr1xd212
      @fanuluiciorannr1xd212 3 роки тому +1

      @@madmanpete I once heard something similar but there weren't walls just very good holograms.

    • @madmanpete
      @madmanpete 3 роки тому

      @@fanuluiciorannr1xd212 holograms - thats the word i was looking for. these aliens are counting on our low tech for them to deceive us visually, until of course until we perfected space travel.

  • @AuntyProton
    @AuntyProton 3 роки тому +1

    For habitats and other structures, why not collect organic biomass and ferment to make methane? Crack the methane for hydrogen, you have a homegrown fuel source that is continually renewable.

  • @logicoutloud
    @logicoutloud 3 роки тому +1

    I hate to say this but his speech impediment is a big distraction for me. Maybe if I listen more I'll get past it, but it's hard to make out certain words and therefore I find myself missing things or having to listen in an anxious way to his pronunciation.

  • @musafawundu6718
    @musafawundu6718 3 роки тому +4

    This is a pleasant Sunday surprise. For me.

  • @supershenron9162
    @supershenron9162 3 роки тому +3

    To my knowledge there's only 3 ways to truly hide a civilization one is to give the laws of thermodynamics a big ol kardashev 3 sized middlefinger, figure out a way to dump all waste heat into a black hole. Or place the whole civilization inside a black hole... so I'm thinking its prolly impossible lol

    • @Ozzy_2014
      @Ozzy_2014 3 роки тому

      The Caelier using Clarke tech drew energy directly from their star and their planet was hidden in a shell. No way of seeing them. Then again later their star went nova then they built the shell around the planet.

    • @jtinalexandria
      @jtinalexandria 3 роки тому

      There is another option. Have we considered that some of these civilizations, when they reach a certain level of knowledge and wisdom, choose not to go the eternal growth route of building bigger and bigger hives and exploiting more and more natural resources at the planet-wide and system-wide scales? What about low industrial footprint civilizations, which still develop and use advanced technology, but have strict population controls, smart resource stewardship, an ecological mindset and a desire to maximize the comfort of the relatively few individuals living in them? I would think that given large spans of time, many of the few civilizations that actually survive would have chosen this route rather than incessantly trying to jump up the Kardashev scale.

    • @danielhall271
      @danielhall271 3 роки тому

      @@jtinalexandria The flaw with that viewpoint is it implies that the civilization values barren rocks over other uses like ecological preserves or habitats for people away from sensitive ecologies. Space colonization is not like earth bound colonization in that we aren't displacing anyone, or any other species, even microbial forms.

    • @jtinalexandria
      @jtinalexandria 3 роки тому

      @@danielhall271 Aren't we assuming most civilizations would want to maximize the number of individuals, though? That is an unstated assumption of the Kardashev scale and I think of much of what Arthur talks about when he discusses advanced civilizations and what they're likely to look like . I don't think it takes a great deal of social and political evolution beyond where we are right now to envision a society that limits population growth for sustainability and efficiency reasons, and does it in a humane and fair way. Hell, China did it by passing one law. (I am not advocating or supporting China's one-child policy, just pointing out that it CAN be done through simple means.) How about a highly advanced civilization of only 1 million members in an ecologically smart, low industrial footprint world that has chosen not to reproduce like bacteria and instead maximizes the quality of life for each individual, but doesn't generate an enormous technological signature that we can see?

    • @danielhall271
      @danielhall271 3 роки тому

      @@jtinalexandria The notion is that civilizations will continue to expand their numbers when they can comfortably do so. Meaning new members are added at the same maximal quality of life as the old members and there are no sustainability concerns. With the astronomical resources of outer space this is completely possible.

  • @Daold
    @Daold 3 роки тому +1

    Staaaaaarrrs, I can't. Stopped watching pretty quickly

  • @iorobinson5650
    @iorobinson5650 3 роки тому +4

    I love your content. keep it up🥰

  • @ndperson1
    @ndperson1 3 роки тому +1

    I really hope some writers and game developers get inspired by Isaac. I have been wanting more games and shows inspired by real science.

  • @Borvo1
    @Borvo1 3 роки тому +1

    I think I heard on NPR this last week (I live in Northeast Ohio so it was WKSU, so maybe they do know your actual birthday) that March 9th was your birthday.
    If so HAPPY BIRTHDAY and Best Wishes.

  • @TransJLM
    @TransJLM 3 роки тому +13

    I was one of the first 10 viewers! I feel arbitraliry priviliged.

    • @christophe5756
      @christophe5756 3 роки тому +3

      I feel rather arbitrarily privileged as well, to be the first to comment on your comment!

    • @seyyyer
      @seyyyer 3 роки тому +3

      @@christophe5756 I fell rather arbitrarily priviliged as well to be the first to mention you in the replies to the above comment

    • @maskettaman1488
      @maskettaman1488 3 роки тому +1

      Odds are you were not. The view count does not update in real time

    • @TransJLM
      @TransJLM 3 роки тому

      @@maskettaman1488 :D it told me there were 9 views when I clicked in, within a minute of launch, so there's a decent chance I was.

  • @willyreeves319
    @willyreeves319 3 роки тому +1

    an idea for some of your mid-month bonus vids : an omnibus of miscellaneous facts and tidbits left out due to editing for time of other episodes, or a collection of things that were too short to make a full video of on their own

  • @UrdnotChuckles
    @UrdnotChuckles 3 роки тому +1

    Imagine the kind of energy available if anyone figured out total mass to energy conversion. And not just chucking stuff down a black hole, I'm thinking something more clarke-tech.

  • @wnrr2696
    @wnrr2696 3 роки тому +2

    Arrived post snack, stayed for the Aliens

  • @singletona082
    @singletona082 3 роки тому +1

    Pardon me I didn't know it was Thursday already.
    Wait no it's Sunday.
    Glitch in the uploader?

    • @Ozzy_2014
      @Ozzy_2014 3 роки тому +1

      Monthly bonus episode.

  • @ramuk1933
    @ramuk1933 10 місяців тому +1

    Hot Interstellar Medium Near You!

  • @rb1054
    @rb1054 3 роки тому +3

    Thank you for your work!

  • @Mika-vp9ts
    @Mika-vp9ts 3 роки тому

    Very challenging accent for a non native english speaker lol... But still i would watch everything related to astronomy :)

  • @woodrat2296
    @woodrat2296 3 роки тому +1

    What frigging language are you speaking?

  • @ianwilkinson4602
    @ianwilkinson4602 3 роки тому +1

    what an odd accent and way of speaking.

  • @wnrr2696
    @wnrr2696 3 роки тому +5

    I think it would be cool if black holes were created to pull everything in a galaxy tighter towards the centre and denser therefore easier to visit each place

    • @m1lks0da76
      @m1lks0da76 3 роки тому +1

      that would be cool...
      you just got yourself a like

    • @yastreb.
      @yastreb. 3 роки тому +2

      It's just black holes don't work like that.

    • @wnrr2696
      @wnrr2696 3 роки тому

      @@yastreb. would be cool tho if that’s how the simulation worked...

  • @tetraquark2402
    @tetraquark2402 3 роки тому +1

    Who knows what could be lurking out there in the deep dark of space

  • @Simonjose7258
    @Simonjose7258 3 роки тому +1

    This is after Peace on Earth and we're all working together in Harmony correct?

    • @mill2712
      @mill2712 3 роки тому +2

      Or it's driven by competition or greed.

  • @Drew_McTygue
    @Drew_McTygue 3 роки тому +2

    Bonus video? This made my day! But.... i ran out of snacks!

    • @isaacarthurSFIA
      @isaacarthurSFIA  3 роки тому +2

      Ran out of snacks!?!?

    • @Drew_McTygue
      @Drew_McTygue 3 роки тому +3

      @@isaacarthurSFIA like the distant descendents of earth inhibiting exostellar worlds, ill need to learn to ration my snacks

  • @crsmith6226
    @crsmith6226 3 роки тому +1

    The red thing at 6:04 scared me cause I thought it was about to crash into the cylinder. It’s almost like depth perception is hard on a flat screen.

  • @evilhenny
    @evilhenny 3 роки тому

    "Dark Matter" :( "Exotic Mater decay of Przybylski Star's Island of stability".... Listen to yourself think carl Sagan was right about plutonium stars

  • @jaikumar848
    @jaikumar848 3 роки тому +2

    Hi Isaac Arthur! Which one will come first in human history "Moon base" or "mars base" ? What's your prediction?

    • @jgr7487
      @jgr7487 3 роки тому

      according to his vids, Moon base.

    • @TraditionalAnglican
      @TraditionalAnglican 3 роки тому

      Depends on which one Elon Musk & Yusaku Maezawa spend their money on.

    • @jgr7487
      @jgr7487 3 роки тому

      @@TraditionalAnglican don't forget the Artemis Project, which is using SpaceX ships

    • @allhumansarejusthuman.5776
      @allhumansarejusthuman.5776 3 роки тому

      Moon base for certain. Its out of the prediction stage now and in the pre-building stage, with massive industrial investment; 2024-2025 it will be online.
      And the cost to visit will be about $2,500-$5,000 in current currency. Cheap enough to set up mass production for shipping back to earth.
      RIP every single production industry. And every single economic theory.

    • @TraditionalAnglican
      @TraditionalAnglican 3 роки тому

      @@allhumansarejusthuman.5776- Who’s going to set this up by 2024-25?!? NASA’s timeline has already slipped past 2026, and Artemis is slated to cost a total of $150B by 2028 (Constellation + SLS + Orion & ESM + Gateway + Suits, Habitats, Rovers & other equipment).
      I don’t now where you’re getting the $2500-5000 figure from. SLS will cost $22,000/kg (not person) to get stuff to LEO & >$80k/kg to TLI. ULA costs about the same. SpaceX (Falcon 9 & Falcon Heavy) are $2000-2500/kg to LEO & ~$10k/kg to TLI. Even Starship won’t be able to get that down below $20/kg to LEO & $120/kg to TLI, & that’s assuming a best case scenario. Given that each person will require ~1000 kg, that gives you an absolute minimum cost of $120,000 to TLI, assuming an absolute best case scenario & no added costs for things like spacesuits, rovers, habitats & other supplies.
      I agree that Starship will enable things not even the Falcon’s do, but it’s not going to be nearly as cheap as you might want to think it will be.

  • @kingtriplebbb5347
    @kingtriplebbb5347 3 роки тому

    Dust ? Gas ? Dark Matter ? Infinite Space ? Continual Abyss ? Far Beyond & further than that uknown Dimension 🌪🤔🌌🎆🕳

  • @greenshadow622
    @greenshadow622 3 роки тому

    Isaac, I notice you occasionally mention dark energy as a potential source of power for a highly advanced civilization, but I don't understand how that would be even possible. To my knowledge, you can't produce any work unless there's an energy gradient, and dark energy is equally distributed everywhere in the universe, so you wouldn't be able to do any work with dark energy, no?
    Apologies if you've already addressed this in one of your episodes, it was just something that nagged at me a bit when you mentioned it.
    Anyways, please keep up the amazing content!

  • @jtinalexandria
    @jtinalexandria 3 роки тому

    I think the one area you haven't touched on yet (which to me seems a pretty obvious omission) is non-civilizational or post-civilizational intelligences. Solo intelligences, whether organic or machine/AI based. For instance, how about advanced technological beings which do not exist as part of a civilization? Or those which once were, but have been living as independent beings for a very long time.

  • @adamdean5881
    @adamdean5881 3 роки тому +1

    I've got my drink. My wife tells me we are trying " intermittent fasting" today 😞

  • @verdantpulse5185
    @verdantpulse5185 3 роки тому

    In a Dyson swarm, habitats will be relativelely massive and unmaneuverable. In dense conditions there will be an opportuntiy for 'flitters', low-mass collectors of solar power collecting in the gaps and dumping to local highest bidders.

  • @seditt5146
    @seditt5146 3 роки тому

    17:50 Tricky part of fusion for us is largely keeping the plasma hot, something which space would help it two fold just off the top of my head making it so easy a baby could do it in space. First and foremost here on Earth we must contend with Atmosphere, Gravity, and Electromagnetic fields of our environment. This makes preventing the Plasma from touching the side cost considerably more than it would need to on Earth as the near perfect vacuum would be created in Space with almost Zero energy cost on our part. Further more the larger we make fusion reactors the easier it is to hit the break even point hence the reason we just keep going bigger here on Earth and in 30 years will reach break even point ;) . In space, when our Reactor could literally be made the size of a small astroid if we wished something as Basic as a Fusor design for Fusion would be more than enough to rapidly reach break even as the Time periods for Ions and Electrons to get from one grid to the other means we could run them in a Pulse mode such that packets bounce back and forth far easier. We would likely even be able to make it multiple layers of Grids in the Future timing them in such a way that the packet automatically avoids the inner grid through electrostatic repulsion( the number one damper in small fusors) . It would be simple, You Have the Grid charged with a Negative charge so it attracts the Positive Deuterium and just as the packets are passing through the grid you shut it down for brief instance then reverse charge such that it now uses repulsive forces to push towards another inner grid gaining power from the positive and negative electrodes. It Literally would be a small sun just sitting there in space producing materials and energy for us all the time.

  • @annoyed707
    @annoyed707 3 роки тому +1

    "Why couldn't we have brought more light?"

  • @TheQuyman
    @TheQuyman 3 роки тому

    I love this channel. But i feel like every topic will eventually boil down to "there is no reason this should be an issue or conflict"
    Ether something is easily done with enough technology or its probably impossible.
    Again i don't mean to sound cynical. Am i oversimplifying?

  • @AdamPitas
    @AdamPitas 3 роки тому

    This might be the end-goal, get an efficient machine running that uploads you into another dimension and if it needs some component in our universe, put it on a rogue planet with a moon, running on heat created by tidal forces.
    I'm assuming that we got it wrong. It makes no sense to conquer a universe that will end, why do you need to have more space? Consciousness is here with you, another one at the other end of the universe is irreievant to your goals. The best solution is to have more time for yourself, that you can appreciate. So find a way to either loop time or make it infinite and if it needs to run on a computer/machine, you keep it as far away from things that have a finite and destructive lifestyle, stars.
    It may even be technologically more feasible to figure out this type of time-travel than intergalactic space travel. I actually bet it is less energy intensive, maybe you just need to upload information to another dimension where time works differently, create a framework that for you to "live in" and upload your consciousness to that.
    I think exo-stellar is the way to go. Also explains why we don't see any galactic civilization... expanding in space isn't infinitely sustainable, only expanding in time is when you find a way to loop it, become independent of time or move to a universe with more dimensions of time.

  • @Dragrath1
    @Dragrath1 3 роки тому

    An interesting prospect in the local group intergalactic environment is the prospects of reaching Andromeda which is approaching the Milky Way as the galactic corona's of both galaxies are intersecting its low density but it offers a slower approach to getting to our nearest major galactic neighbor. There is also a higher density pit stop around a million light years out halfway between the giant spiral galaxies where the two coronal halos intersect compressing material and driving the beginnings of the star formation of Milkomeda. It is of course pretty far out and limited in terms of what is there now as we are only in the very early stages of the Merger but for an exostellar civilization it might very well be prime real estate You could not only offer boosts to colonists on their way to Andromeda but you also can be pretty sure you don't have any annoying neighbors to deal with.
    The communication lag is quite awful however hence it would be for the I want to get away from everyone crowd. Exostellar space hipsters basically. XD

  • @goldenfloof5469
    @goldenfloof5469 3 роки тому

    Did the math, apparently if you took all the matter and energy of the entire observable universe, and crunched it down to a cube the density of water, it'd be only about 20 lightyears on a side, though given I was dealing with dozens of orders of magnitude, that could be off by a fair bit.

  • @squireob
    @squireob 3 роки тому

    ... a strange dark orb at the very rim of our solar system... There are mighty cities ... great tiers of terraced towers built of black stone... The sun shines there no brighter than a star, but the beings need no light. They have other subtler senses, and put no windows in their great houses and temples... The black rivers of pitch that flow under those mysterious cyclopean bridges-things built by some elder race extinct and forgotten ...

  • @johanneslehmann4915
    @johanneslehmann4915 3 роки тому

    The Popuulation density problem does not exist with a waste heat using system which can grab energy from melcular motion. In principle those machines already exist.

  • @Theodin74
    @Theodin74 2 роки тому

    I don't know why but I feel like dark energy and dark matter might be a way to get a space craft close to the speed of light, or even FTL, If in the future we discover a way of using dark energy to power an engine that could collect dark matter while you travel to be used as your propellent, the faster you go, the more dark energy and dark matter you would collect and as it is spread evenly throughout the universe, I feel like this type of engine could reach light speed or even go faster than light, as long as you could keep getting more and more dark energy and dark matter as you go faster, it's kind of like having infinite energy and infinite propellent, that's saying if you could some how survive reaching these speeds without killing the crew or destroying the ship by hitting a dust particle, far as I know though, there might be a cap on the speed you could push the dark matter out the back of the engine

  • @seffundoos
    @seffundoos 3 роки тому

    One feels that latency will be an issue when creating a galaxy-wide computer. Considering there are whole 'sets' of 'scales' equal to or larger than the scales we experience that are 'larger' than the galactic/filament scales that permeate our universe and that are effected by more forces it is more likely that our mastery of the quantum universe has more to offer in the future of computing

  • @seraphina985
    @seraphina985 3 роки тому

    In addition to avoiding the law and taxes, I think a lot would just be avoiding ideological differences in general. We have seen this occur in the history of our own planet given new land to relocate too ideologically opposed factions tend to go and set up shop elsewhere and those who agree with them emigrate there. In our current time, we have run out of places that are technologically viable to settle that someone else didn't already stick a flag on and say mine. But I do expect minority factions will start setting up shop elsewhere when that opportunity becomes available again, the underlying ideology can be shown to still exist by the mere fact separatist movements still exist which is evidence that ideologically discontent factions that want their own space are still present.

  • @tiborvandekamp9791
    @tiborvandekamp9791 3 роки тому

    Isn't it possible that there are lots of planets with at least human like life., but because we (and they )can only see millions of years in the past from other planets, we (and they) keep thinking, "we are the only ones in the nearby universe"?

  • @garyjust.johnson1436
    @garyjust.johnson1436 2 роки тому

    I am ready for a post scarcity civilization! I do volunteer work at the local food pantry. Whats the first step to owning nothing and being happy?

  • @jameslafayette3866
    @jameslafayette3866 3 роки тому

    Romans 6:23 esv
    For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord.
    #TurnToChristAndLive

  • @steve8956
    @steve8956 3 роки тому

    Think could be why we see the cigar shaped craft? And if so would be possible to basically shield it rock so anyone like us that sees you we just think you're a giant rock from the outer solar system?

  • @michaeljohnson9092
    @michaeljohnson9092 3 роки тому

    Ok how about living on a planet in a red giant. So before the star goes red giant, build a shell around the planet to protect it. As the star goes red giant you could suck in its thin outer shell for fusion fuel. It would be hidden and there would be plenty fusion fuel.

  • @LincolnChamberlin
    @LincolnChamberlin 3 роки тому

    You could also just make a second channel for posting whatever, it is common to just have it as a place for extra stuff that ignores the UA-cam algorithm

  • @smhaceofspades2813
    @smhaceofspades2813 3 роки тому

    I see NOW Arthur seen that pitiful eXcuse FOR a movie Cosmic Sin so had to make his own version.

  • @imjustbryce6235
    @imjustbryce6235 3 роки тому +1

    isaac the great

  • @-inquisitor-9689
    @-inquisitor-9689 3 роки тому

    I've watched every video you've put on UA-cam i just like as soon as I click on the video now

  • @Thick.Mothers64
    @Thick.Mothers64 3 роки тому +7

    Them aliem baes be like: we just driftn, between galaxies, now that's hawt...

  • @n1mbusmusic606
    @n1mbusmusic606 3 роки тому

    FISSION. stop it with the solar lol jesus ive had enough already.

  • @sssssnake222
    @sssssnake222 3 роки тому

    Why not make a giant fiber optic cable for the ship to move through, all of the light focused at it would hit it guaranteed

  • @luciferblack7194
    @luciferblack7194 3 роки тому

    10:00 "Pray for the great money in the sky and middle finger means peace among the worlds"

  • @truedragondraig5372
    @truedragondraig5372 3 роки тому

    Whenever I hear your voice I imagine Elmer fudd in an einstein wig talking.

  • @cosmosdream283
    @cosmosdream283 3 роки тому

    Before we colonise the galaxy,we should make mars bar a planet.