The Science of TIME TRAVEL to the PAST
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- Опубліковано 17 чер 2024
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Chapters:
0:00 - Einstein's predictions
1:51 - How wormholes are predicted
3:39 - Kip Thorne time travel thought experiment
6:55 - Why don't we see time travelers now?
7:25 - Could black holes be wormholes?
8:35 - Could we create wormholes?
9:15 - What is negative mass?
10:19 - Proposals to create wormholes
11:15 - Why the NOW is precious
References:
Maldacena and Milekhin paper: arxiv.org/pdf/2008.06618.pdf
Detecting wormholes in centers of galaxies: arxiv.org/pdf/2008.09411.pdf
Making wormholes using black holes: arxiv.org/abs/1908.03273
How to build a wormhole with cosmic strings: t.ly/TWS3
Summary:
Traveling forward in time is not a problem. You're doing that now. Can we travel backward in time? There is a theoretically possible way to do it using wormholes.
One solution to general relativity predicts an Einstein Rosen bridge, which is a type of wormhole. If this is real, they could also allow us to travel back in time.
Einstein’s field equations are nothing but a tool to understand how matter affects the curvature of spacetime and how spacetime affects matter. So we can imagine almost any creative spacetime curvature that results in a worm hole, and then by solving the field equations figure out how the matter in this spacetime must be configured to obtain that desired curvature.
One solution can form a spacetime curvature that is like a tunnel or shortcut between two points in space. These points can in principle be very far apart in space, or they can also be different points far apart in time. By traversing this wormhole, you can effectively travel faster than the speed of light.
Caltech physicist Kip Thorne came up with a thought experiment to achieve this: Imagine in the year 2200, we create a stable and traversable wormhole in a lab on earth. We then take one end of the wormhole and place it on a spaceship that can travel nearly at the speed of light. The other end of the wormhole stays in the lab on earth.
If the spaceship travels at 99.5% the speed of light for a year, according to special relativity, the clock on the ship containing the astronaut and the wormhole will run about 10x slower compared to the clock on earth. This is time dilation. So by the time the astronaut returns to earth, 10 years will have gone by for the scientist in the lab, but only one year will have gone by for the astronaut and the wormhole on the ship.
The year would be 2210, but biologically the astronaut is only 1 year older. But, because the wormhole in the lab 10 years earlier would have its clock synchronized with the wormhole on the spaceship, even though the astronaut is physically in the year 2210, he could step into the wormhole and land in the lab in the year 2201 because only one year would have gone by for the two synchronized wormholes. He would be able to travel back in time.
In addition, the scientist in the lab in the year 2201 would be able to step into her wormhole and land 9 years into the future. She could travel forward in time. But by the same token, the same scientist in the lab in the year 2210 would be able to step into the astronaut’s wormhole and travel back in time to 2201 as well.
If the spaceship could travel even faster, then the bigger time dilation could allow it to end up hundreds or thousands of years into the future, allowing future humans to go back in time to point where the wormholes were first created, and for humans in the past to go to the future.
Note that you would not be able to travel further back in time than the point when the wormhole was first created. So this may answer the question, if time travel is possible, why don’t we see time travelers all over the place? The answer could be that wormhole has not been created yet.
How realistic is this wormhole concept? No wormholes have been observed. But in a new paper, Russian astronomers suggest that black holes at the centers of some bright galaxies, may in fact be wormholes.
Could we create a wormhole in the lab? One problem is that when you create a wormhole, the high gravity near the center, where the tunnel connects the two mouths causes it to collapse as soon as anything enters it. It requires exotic matter with negative mass or negative energy to hold it open. Negative matter is not known to exist, but negative energy may have been observed in the Casimir effect.
#timetravel
#wormholes
Other scientists have also proposed creating wormholes by connecting two oppositely charged black holes with cosmic strings to hold their mouths open. - Наука та технологія
“That’s coming up, right now.” Arvin, I really enjoy hearing you utter this phrase.
All these moments will be lost in rain...
...like tears in the rain.
Tell Starbuck to grab the gun,
Bring in the cat 🐱
Jump the FRACKING SHIP
Like tears in rain...I did a workshop with Rutger...he wrote all of the silence...and accidentally had porn tabs visible on his PowerPoint
@@ArvinAsh time tears!
Lost in time not rain...
As always, great content. Kudos to your graphics folks and editor.
Excellent video. Very interesting, informative and worthwhile video. Many thanks for the links to the papers.
A video about cosmic strings would be great.
Thank you Arvin always so clear without sacrifice the precision.
I Absolutely love, and i mean, LOVE the content on this channel so much. What an amazing way to understand the world around us thru ur amazingly simplified explanations! Thank u for doing this for us and please keep this coming bc this is way better than college!!!
Glad you enjoy it!
hey its the seans eyebrows guy. just wanted to thank you for the womderful content
Thank you for sharing this that was very very interesting. I really enjoyed the topic. Amazing!
Great thinking! Interesting, inspiring, exciting, even if one day it might be proved wrong! Great content Arvin
Amazing Graphics Sir ..... Salute to you and your team .....
Thank you to make difficult abstract stuff easy to understand!
Thank you for this great vid, Mr Ash.
I wonder if there is anything in the math that would prevent a smaller wormhole from being sent through a larger wormhole. I see great potential for confusion! Thank you again for your videos, always appreciated!
I haven't run the equations, but I suspect two wormholes would collapse each other.
I think you should stop reading Peter F. Hamilton's books for a while.
@@ArvinAsh but the hypothetical spaceship traveling at 99.5 c would have almost infinite mass and would require an almost infinite amount of energy to push it. And is strange matter different from exotic matter or are they the same?
@@ArvinAsh Your Bob Lazar video was spot on until you mentioned wormhole. E115 is actually Y124 the YBCO superconductor used in NASA Scientist Ning Li's Warp Drive in the 90s and 2000s. Bob built the flying version of Ning Li's Drive! I can prove that fact in seconds. ua-cam.com/video/gUOqe2FVrmU/v-deo.html
This missile hits the Microwave RF heated air and EM field. That is the explosion!
The Sidewinder is gravitational "refracted" through the EM Field Energy Density Gradient (Gravity) around the drone produced by the YCBO superconductor rotating at about 5000rpm and hit with Microwave RF via waveguide to control polarity and the direction of force and its path is altered changed 30 degrees around 2 drones (15 degrees each).
Anyway, Arvin, due to your skills, you WILL FINISH BOB LAZAR STORY and maybe save us from this UAP kinetic kill menace!
The vets chose u out of 20 youtubers to receive the unedited footage of this A10 Sidewinder missile strike on these UAP and after they shoot up 80,000 feet in 1 sec they return 2 minutes later by TELEPORTING in from of the camera.
Its not teleporting, 50g's accel and 20,000 top rate speed. Using natural freq of EM field 75MHz !!! They are flying MRIs with and inverted microwave oven which is how the air is getting heated and swirled into a magnetic field like a "black hole". My father launched Apollo 10, 11, 12, 16, 17 and Skylab 2,3, and 4. He also was on the Space Shuttle Flight Computer Team and Challengers forensic team because he built her Computers with his finger cot hands!
I am sending your email the footage.
YOU CAN NOT RELEASE IT UNTIL THE VET GROUP DOES FIRST.
DO FORENSICS. SHARE WITH FOERENSICS. NO PUBLIC REELEASE.
Get you EM Drive / EM Force Field Videos Ready then Wait!
as long as the larger wormhole had enough negative mass to withstand the gravity from the smaller one then it would be possible and headache inducing.
Great video! Thank you
Remember to email time machine design to all the governments and all the chairman in South East Asia. Okay
Really loved It man keep making awesome videos like this
Bravo!! 👏
Another great video.
Well done. Great work!
At least this kind of explains why Hawking didn’t experience any guests from the future. I don’t remember when he envited time travellers to join him (20 years ago. ?)He wasn’t afraid of thinking out of the box . I still remember the photo of him being all alone. So I guess it’s fair to say that will not happen soon. Great show 🎸😊🇩🇰⭕️
Hawking proved that time travel doesn't exist.
@@wulphstein well it does
@@wulphstein No, he proved that nobody has time traveled to his time and location to meet him. Maybe it happened in an alternate universe.
@@wulphstein Disagree, maybe they didn't see the invite? If time travel is "invented" in 500 years time perhaps Hawking is long forgotten and there is no evidence or recording of his invite to time travellers to attend his party.
I mean there could be someone that came to the party but they did not show it to the world.
But wait. It all assumes that when I look through wormhole I see everything on the other side in real time. What if scientists in the lab sees astronauts in slowmo?
Exactly!
in the spaship traveling at 99.5%c, would things be brighter when looking through the wormhole?
in the spaceship again would the people on earth be speed up or would they be more like a lag?
like can the spacetime inside the spaceship capture all the light from earth and return it continuously or would some light intensify?
Well it's just theoretical, it's not sure if you'll be able to see the other side. Even in the video, he said that it would look like a black hole and if it's like a black hole, we won't be able to look through it. But if we would be able to look through it, we'll surely see it in slow motion
Fantastic presentation!
It looks more like an entire ship interior was put in a sort of "hibernation" for 100 years. You can observe those molecules as they ageing at 1/100 of your local pace, but it doesn't mean you can send a piece of information back in time though.
Fuckin correct
Yes. There wouldn't be any time travel unless you count the people on the ship through time dilation traveling into the earth observer's future. No travel into anyone's past is indicated in this thought experiment. I've always wondered what Einstein and Rosen were smoking when they were pondering this nonsese.
It seems like, assuming the wormhole had synchronized clocks in both reference frames, the wormhole slowly becomes connected to a different time, so it is possible to go to "objective past", aka spacetime point that can influence yours.
@@creativenametxt2960 isn't it a huge assumption?
@@andreylebedenko1260 that seems to be what the video is saying and I don't think I can neither confirm nor deny that math of that checks out, but the math of it is somewhere out there.
I hope you have topic about time machine
I have a idea ☝️😀💡
😃😃😃😃
As always knowledge is the ultimate reality.. good info dear arvin ash.
Always happy to see a new Arvin Ash video
1️⃣ Every time you outshine yourself, salutes!!
2️⃣ This guy looks like an old high Jackman from Les Miserables!!
Finally, i subscribed to the Wonderium annual subscription from your link ... it is amazing, really.
I don't think this violates entropy, since traveling back in time before the wormhole was manifested is impossible (nothing that has been done is undone, entropy doesn't reset to a lesser, more stable state), to where any crossing through the wormhole done by the future astronauts on the ship would technically just be the time dilation effect, time may have slowed down on one end of the wormhole in perspective to other , but it never reversed.
Even after the wormhole is manifested things can change. So theoretically you can change things in the past that (should?) have an affect on the future. I think entropy still isn't violated because time and space are all part of the same universe and theres no additional copy of the time travelers.
@@escobyte Again, entropy holds because even though it seems like time travel to those relative of the wormhole, the rest of universe itself has not "gone back" or "reverted" to a previous state, the only difference here is how fast the time has moved forward for the two opposing parties on either side of the wormhole, keyword being forward. Even if you have the guys on the ship step through the wormhole into the "past", it really isnt the past, they are just stepping into an area that experiences time at a different rate. One good question I have is if you were peering through said wormhole and there is a time dilation effect, would what youd be see from the wormhole be moving faster/slower, since there's a discrepancy in the effect of time?
This is exactly what I'm asking, wouldn't you see the time passing slower or faster depending where are you standing on the ship or on the Earth?
@@starbuilder8648 I actually think that would be so, and you wouldn't being able shake hands with someone through the wormhole unless one person on one side went 10x slower/faster in relation to the other person, and it would have to be synced up perfectly.
Certainly violate causality.
Great video🔥👍🏻
Awesome video!!!!!!!! Thx for this!!!
My small brain couldn't understand much of the info here
But i'd love to listen to more of these videos!
Keep up the good work!
We always talk about traveling back in time like the past is stored on a disc just waiting to be rewound. What if every moment stops being real as soon as it passes?
Then time travel is impossible. And that is quite probably the case. But it's too boring for a video.
You are totally correct it is ridiculous because the past doesn't exist. And Einstein did not believe in time travel backwards to the past so this is not his prodiction.
It's been proven that time can move at different rates depending on your speed. Time can theoretically stop inside a black hole at the singularity. Given this behavior scientist believe time is a dimension on which things can move at different rates and negative rates are not forbidden according to the formulas.
@@escobyte I agree but only in local space that is not time travel that is time dialation there is a big difference. Time dialation has been proven time travel to the past which doesn't exist has never been proven or even point to be proven with fact based evidence. Universal time is linear it only moves farward, local time is relative to the condition of spacetime this is time dialation. The past doesn't exist this is pure speculation with absolutely no evidence what so ever. Some people and scientists use time dialation to prove time travel this is an assumption. Time dialation is because time isn't a constant according to Einstein. All the fact based evidence points to this time travel to the past is nonsense.
Time only exists so that everything doesn't happen at once. So the past and future are as real as now and are happening at a different location in time, not space. Like a VHS tape. Big Bang at the start, vacuum decay at the end. The good part, if something likes this movie, we'll be replying for a long.
Holy crap that ending was profound. Great video just like the rest of yours!
Entertaining, educational, AND superb graphics .. I very much enjoyed it. I'm imagining worm hole travel RIGHT HERE on earth.."Step right up ladies and gentlemen, L.A to Paris in just under 2 seconds..Show your ticket at the gate". ..Thanks Arvin..
I hope time machine will come to Vietnam. I want to travel back to 2017 to prevent the pandemic
Hi bro you can help me time travel is possible and how I can go to past and save my love please help me 🙏🙏🙏
@@aarthiv55Don't worry 😉. Time machine will come to Vietnam 🇻🇳 soon 🔜. Keep being patient
Our future robot AI selves have their work cut out for them. Geat video!
Very nice video)
Great video
Can’t put my finger to it and say why, but this video might’ve been the best video you have ever put out. Thanks for the effort and time you put in these.
6:06 In 2210, wormhole operators ride LADA automobiles!
Nice touch at the end :-)
I see two problems with this hypothesis.
1. The ammount of energy required to keep the wormhole open for seven years would be mindblowing.
2. It might be imposible to anchor one and of the wormhole onto a ship that is moving at the speed of light.
Wormholes might be tuneless in space-time that are fixed and cannot be pushed around freely. Moving one and of it might cause the structure to collapse.
If someone can prove the elasticity of the tunnel in the form of a mathematical equation than we could remove this obstacle from the hypothesis.
Those aren't the major problems. Wormholes violate causality. If they were separated by significant distances, there exists a reference frame who would observe you leaving the wormhole before you even entered it.
@@Malamockq No it wouldn't. If the exist wormhole were on the near light speed ship you'd just be stepping from the earth time frame to the ship time frame which relative to the earth would be moving much slower due to the time dilation.
@@MrHominid2U Your English is really bad, so I'm having trouble understanding you. But wormholes allow passages between two separate points in space time, as such, violations in causality will necessarily occur.
@@Malamockq The only issue I see with my English would be where I typed "exist" when I obviously meant existing (duh). If you can't figure that out you must have some cognitive deficits which also is indicated by your inability to understand my relatively simple point which quite a few others here have also stated. Yes wormholes allegedly can connect two timepoints but in this Einstein Rosen example the time travel occurs because of the fast speed time dilation onboard the ship. There is no violation of causality.
I see one problem with your objections:
1. It is word salad.
Están traducidas o subtituladas al español las clases que usted recomienda?
Están trabajando en eso. Pero actualmente, las clases son solo en inglés.
@@ArvinAsh Esta klaro
Love your video bro💓💓💓
Hi Arvin, I am great fan of your videos.. could you cover light coming from behind black hole recent discovery ?
There is an error in the 'holding hands' part, they CAN but only for a short time. As the ship accelerates and the time dilation effect in respect to the outside increases, you cannot hold hands anymore because the people at home, will see the passengers move in slowmotion and if they put their hands in, they will feel a temporal compression. I think temporal wormholes or wormholes entirely, are impossible.
Not to say if black holes are worm holes or if worm holes behave in a similar way, there is no "putting your hand in it", more like getting ripped and crushed due to the absurd gravity and well, dying, you know...
WRONG. There would be no "temporal compression". If the traveler had one end of the wormhole in their ship and you had the other in your lab staying on Earth, and you could just walk through to be with each other, or talk to each other, you could look at each others' clocks and they would remain synchronous. Time would pass at the SAME RATE for both of you, on both sides of the wormhole. It's just that it would only be 1 year before the ship was back on Earth from that view. In 1 year, the ship would arrive back on Earth from the view through the wormhole, but the person on Earth would be able to look up through a telescope and see the ship barely departed and only 1 year out on its journey, only to return in 9 years more. That is WHY there would be a 9 year difference in time between one side of the wormhole and the other at the end.
@@medexamtoolsdotcom I mean this is all theoretical anyways it’s not that serious
@@medexamtoolsdotcom What if I kill myself by going past...as à lab scientist🤔😅??? It is undefined scinero right at that point... or pardox I think by wormholes also we can't go to past...!!!
@stable8692 you can only go back to the time they are in right now. And in the time they are in, you are in the spaceship. You couldn't go back to a time where you exist
I think the most fundamental mistake people have about "time travel" is:
Past,future don't really exist....
You want to experience the past?!Create the STATE of the past with what you have,NOW...
(You don't travel through time,you create time.)
Multiverse Time travel in other words. (You create a new reality)
In other words, you're a presentist. You believe in presentism. Prove it, or that would fall into the category of religion. Meanwhile the adults are talking about science.
@@medexamtoolsdotcom What is a-prove?
To recreate some scenario with what you have,matter,energie.....to show others that future can be predicted:
"Isnt that what you are doing now?!"
"I mean,you...i mean,now."
as for scientific ones,we need opptunities and efforts to prove it:
now,believe what you feel like to.
It's like skateboarding in space time at FTL speeds, insane.
I already knew about this but I think it's so cool that I wanted to re-watch it.
Excellent
Take no moment for granted, because remember, no one shall ever experience just your moment ever again...
Until poincare recurrences occur, at which time, yes that moment will be experienced again, and probably an infinite number of times.
Always love watching your videos. I do want to mention that I think your statements at 11:30 are fundamentally incorrect; if there is another civilization that has already developed a wormhole that we could (in theory) reach and then go back in time to "the now". I'm still banking on this theory so that one day I can go back to the 90's.
But if that is the case, then we should have seen time travelers in the 90s 😳
@@XxDTownxX91 Could have, but not should have. Maybe "we" doesn't include you in particular, but it did include someone else, or no one else.
Sure that is possible, but then the big assumption would be that this extraterrestrial civilization would have or has visited us. None has.
Of course this is true. This is one reason to believe that either there are no remotely nearby alien civilizations, or they have not made such wormholes. But indeed, if aliens made a wormhole pair, and then their civilization destroyed itself, it is quite possible we could find them in space and use them to go back in time billions of years if we wanted. The odds of finding such a relic is low, however, I believe, but then so are the odds of making a wormhole ourselves in the first place.
What do you use to produce your graphics? The work is most impressive
Beautiful
Science masterpiece by Arvin. This was outstanding, best wormhole and time back travell explanation ever. Thanks.
Rodney McKay is going to be so mad at you Arvin, as this was HIS idea! :P
Yeah, well he was kinda dumb in the early episodes tbh. Like in the episode where ship gets stuck in the middle of the stargate and he has to explain newton's first law of motion for the camera, as if he's a freaking genius for just thinking of it just then. Also he always said "solar systems" when talking about alien star systems. It was kind of hard for me to take him seriously.
@@medexamtoolsdotcom That was the point. In SG1 McKay was a dumbass and only existed to make Carter look good (or even better). In the first seasons of SGA he had to slowly transition from a*hole to a character you could actually like. Leave it to David Hewlett to make this transition look like his character is actually becoming a better person through experience, that's great acting!
@ScottM: there was an NDA that everybody signed and Carter had a talk with Rodney - he's begrudgingly agreed to keep this one quiet (I think they threatened to reveal that McKay destroyed a solar system)...
Like this guy and the video first time I've come across him
Thank you, now i can travel back to my timeline.
Hi bro how is possible please help me I want to go back and change my past please help me 🙏🙏🙏🙏
If people could be frozen and brought back. they could travel forward in time
That is not time travel, if it were then everytime we sleep we would be time traveling to the future.
What about "rewinding time" as versus "travelling back" in time. The former would be like running time backwards, whereas the latter seems more unlikely, because it implies your personal time ticks at 1 second per second just as it always has, but all other clocks have "rewound". If time could be run backwards, we would "unremember things" and grow younger, then pop out of existence in a sort of reverse death. What I'm really curious about, is when you play it back, does it play out exactly the same again, or does Quantum Uncertainty cause certain things to follow different paths, very small at first, but as per the Butterfly Effect, events continue to diverge. I kind of hope that is the case, as it means we could rewind, roll the dice, and maybe certain things could go better. Then again, maybe they could also go worse. Either way, we would never be able to know.
That’s coming up - right past on yesterday!
The end though hit me hard
You just explained how the technology works in The Tomorrow War.
Finally! That movie was already convoluted on its own, I finally understand that bootleg Edge of Tomorrow movie.
The amount of negative comments on this video is some what mind blowing to me. It's a UA-cam video about something entirely theoretical and many of you act like he's declaring he's invented time travel. We come up with theories and test them to either prove or disprove them no matter how wild they may seem and that's how we advance and make discoveries. To sit there and claim "because Einstein said it's impossible it certainly is" is somewhat absurd. He was proven wrong about quantum entanglement he could be wrong about other things. There's nothing wrong with getting people's minds postulating possiblites and forming their own hypothesis even if they are wrong
It's worse than that, what I'm seeing are comments that completely don't GET IT. They don't understand why the 2 ends of the wormhole would get out of sync, like they think that the person in their lab on Earth would look through the wormhole and see the person on the ship M oo vvv iii nnn gggg vvv eee rrrr yyyy sss lll oooo www lll yyyy.
@@medexamtoolsdotcom not comprehending a concept doesn't annoy me personally as much as them attacking the man's character. As well as insulting the intelligence of people who consider possiblities no matter how absurd it may seem. But I do agree there seem to be quite a few of those as well
Very excitement ❤💙💜💚
Love from india ❤️❤️,you explain well👍👍
Jeff bezo would capitalize on this
While Elon Musk would promise to have it ready by the year 2023, and then the stupids would buy buy buy and drive the price of tesla even higher.
By cornering the futures market with tomorrow's deliveries ... Yesterday, when first needed.
Let's go back and stop all the negative events of human history
:)
Doing that would change the present.
@@UKUSA then you couldn't have done it, but you did, so you were born. see the problem? 🙂
@@Lightmane wrong multi universe with different timeliness would exist then which means somewhere they already do in your theory
And TVA come and arrest you
Interesting uses of entropy/enthalpy for energy sums relative that can be reduced to 0 or less in a distinct spot? Sterling engine's /quantum effects/ Casamir effects... To achieve overall energy over time relatively lower than the overall by stealing entropy in a way... From elsewhere. Via magnetic arcing or something of the sort...to avoid slowing the nearby region to the energy surge you would use that as your naked singularity point...?
I love your video's, are you making an example video about how an observer isn't necessary a live being compared to static matter/energy? I never got to an answer....
8:45 The way Arvin describes it, you travel into the future through the speed of light and only then, travel back by others than yourself will be regarded as traveling back in time as ironically you offered 10 years of your shared life with your family to make time travel possible for others.
If I understand correctly, traveling back in time is therefore a forward only event, a breadcrumbs approach to find your way back from a future to now, never from now back into the past. That’s quite the futuristic letdown and welcomed into the same hall of fame as flying cars and the like...
11:15 I was just too impatient... but at least I understood correctly... ;-)
Those moments wouldn't be lost forever if another civilization from anywhere else already made a wormhole. Just saying.
Quite right. Or if there were traversible natural wormholes. Or if there was a legit way to move through space faster than light, then you could go back as far as you want.
It seems to me that Einstein's equations measure the effect of matter on space time but do they really tell us HOW practically matter effects space time? Do the equations tell us what happens to the space inside matter, say inside a planet or star, or a kilogram of iron or lead rather than just around large amounts of matter like near a singularity?
Well if you assume matter is just made of more matter then in theory they do. The beauty of general relativity is how... generalized it is... in theory you can find solutions pertaining to such complex systems, its just insanely difficult.
In the most abstract sense, no, the equations don't say HOW mass affects spacetime. But that's kind of unimportant. That's like complaining that we don't know HOW an electric charge generates an electric field, or complaining that we don't know WHY a changing magnetic field generates an electric field. At some point you must simply accept that it DOES, or else physics can go no further.
@@medexamtoolsdotcom Actually our whole 150 years of technological development come from knowing how to generate and control electric, electromagnetic and magnetic fields, Surely if we understand how matter interacts with spacetime that could lead to the unified field theory everyone is looking for. It may also lead to a whole new paradigm of technologies for travelling through spacetime. Surely anything that even vaguely resembles all those scifi warp drives can only happen if we figure how to curve and shape spacetime. General relativity, it seems to me is the equivalent of a voltameter as opposed to a circuit board.
May You make a video about Tipler Cylinder?
@Arvin Ash this is kind of "out there" :
Q: the movements of the planets around the sun create a current flow in its path?
Remember when Stephen Hawking held a party for time travellers, and then announced it publicly the next day as a challenge to the future? Nobody showed up :-(
That’s because the human will destroy itself
I don't remember because I wasn't there.
Brings a whole new meaning to the term "do over".
Hey Arvin is there any video of yours for why Quantum mechanics and relativity is not unified yet...
Yes, this one: ua-cam.com/video/S3Wtat5QNUA/v-deo.html
@Arvin Ash Can I know somthing about quantized or definition like how in bohr's model orbits are quantized what does exactly quantized meant here actually on web it's not quite understandable. [ I want to know correct meaning of it in not much complicated way ]
I think this video might help you: ua-cam.com/video/fP2TAw7NnVU/v-deo.html
Could observing something through the wormhole in 2201 to 2210 affect the future of what you saw? If you saw a building in a certain place, could you say “Well, I’m not going to build that now.” What would happen?
Sir can please explain that how a mirror works at quantum level. (with different wave length)
it is still tripping me out and I am very confused about this.
Overall, very thoughtful & insightful. One thing that I feel was not up to your usual standard... it seems you raced thru the practical example without sufficient clarity: the spacer in 2210 looking thru the wormhole at 2201 part.
ua-cam.com/video/L1iniYijmbY5/v-deo.html
arvin have you considered sending the episodes as a podcast
No I haven't. Tell me more about what you mean.
@@ArvinAsh other science channels like Isaac Arthur have audio only versions on podcast apps
@@paroctack Interesting. I haven't thought about that, but maybe I should?
You forgot to mention that calculations by Thorne, Hawking and others seem to strongly indicate that wormhole time machines are unstable. That is, they seem to self-destruct at the moment when the wormhole is just beginning to turn into a time machine. An additional you didn't mention is that one of the major challenges is, not only holding the wormhole open, but how to "punch the hole in space" necessary to form the wormhole to begin with. (More technically, how you achieve the "topology change".) There are some old theorems proved by Geroch that demonstrate some of the severe difficulties in trying to accomplish that. You gave a nice description of forming a WH time machine using the twins. Nice description of Thorne's argument.
I once read this concept in a sci-fi roman by Stephen Baxter where they put a wormhole end in a generation ship and sent it on a 1000 year journey (the ship itself travelled 1000 year in view of the ship) to create a passageway to 1000000 years in the future to check on the sun which was aging too fast. was very interesting, especially the part to see the social structure changing, warping and disintegrating over the 1000 years.
We want time travel! When do we want it? That's irrelevant!
The time travel topic never gets old.
Your outro was beautiful, poetic and sad.
Plz make a detailed video about time dilation
Arvin can I ask a question. If you are talking to someone on the other side of the worm hole and time is moving 10 times slower as they are near or at the speed of light. Does this have a physical impact on speech, movement IT systems etc.etc from the observers perspective. Resulting slowed inaudible speech etc etc. May be a silly question.
I love your videos. You are able to present complicated ideas really simply. That means you understand them properly. Therefore I am sure, you also know that - if Einstein's theory is correct - FTL travel or FTL signaling is impossible, regardless of the many mathematical papers on various warp-geometries, wormholes etc. The fact is that superluminal travel implies time travel and creates not only paradoxes, but as a consequence, problems with causality too. Consider two events (given by their space-time coordinates,) one is a button press (as the cause), which emits an FTL signal, the other one is explosion of a bomb as a consequence (the effect) of receiving this FTL signal! According to Einstein if these two events are observed from a spaceship traveling below light speed in a suitable direction the explosion may come earlier than the button press. And this is completely independent of the method the signal travels.
Yes, but this has nothing to do with what was presented in this video. He didn't show any situation with FTL speed, the spaceship on this video was traveling at 99.5% the speed of light
Why would the signal traveling FTL mean you'd detect the explosion first? The effects of the explosion would be at less than c so the causing signal would always be first.
How do you get all these please tell us
Could there be some kind of positive feedback loop similar to microphone/speaker feedback that restricts proximity between the ends of a time dilated wormhole?
Would this prevent a wormhole from allowing time travel?
like tears in the rain
Isnt the example with the ship and scoentis upside down?
Considering that the Wormhole Containment Device (WCD) is a Star Gate - I don't think we have to worry about time travel too much - you can't hold it open for more than 38 minutes! Everybody knows that - right? Also, next time: use the Tria as a ship - the Lantean systems are a bit more efficient even at sub-light speeds (don't worry, it's still out there waiting to be collected - you can get there via the Gate bridge). ;-)
SCNR. Great episode Arvin!
Some cosmological theories like the causal dynamic triangulation don't allow worm wholes. What is your opinion to concepts of time travel in such alternative theories? Are they in principal possible? Could we e.g. create curvatures of spacetime by using "pure" information (and not large amounts of energy)?
The Tomorrow War time travel uses the same principle, using an established a worm hole to travel back and forward in time, eventhough the time on both side of the worm hole are ticking forward at the same rate. When the existing two worm holes are broken, the time travel between those two time periods end.
@ArvinAsh Are we energy? Or information... And what are gravitational Waves?
Please explain about dimensions
Good Video Arvin Ash. If such a worm hole can be created in future like shown in the animation then if the Star ship is at Alphacenturi a person has to just step into the worm hole from a station in earth and reach there in seconds. But Worm hole will have to opened and closed Immidietely after use as it could consume lot of energy and precious exotic matter and even if at Earth we may have the required energy a travelling space craft may have limited energy. It will be the ultimate in transportation of people and material in seconds from one part of Universe to other. A person who just to go into future can step into the space ship and come back after an year and vice-versa.
7:53 what I always wondered: How far can the ends of a wormhole be away? Or how far can you travel using a wormhole?
the distance you can travel is limited by how far away you can move it.
There is no limit, theoretically.
@@ArvinAsh thanks for your answer. what would be need to connect the Milky way and the Andromeda Galaxy?
I think the real answer is that no one knows what sort of limitations such an object would actually have, since we have no such objects to experiment with.
So it's possible that once we are able to create a wormhole. There could be somone stepping in from that wormhole from the future since we would most likely try to link it another one amd travel at te speed of light
Does the curvature of the universe affect travel through a black hole / wormhole? I would imagine that the universe being closed, flat, or open being a major factor in the path through ERB.
Overall curvature of the Universe would not affect wormhole travel. With a black hole, the event horizon prevents anything from coming out, so no travel through a black hole is possible...unless it is a spinning or charged black hole, in which case it can become a naked singularity, as I talked about in a prior video.
Thanks, I learned a lot! If I understand correctly the following scenario fits: suppose we create/invent a wormhole in, say, 2029. We then could theoretically get back to that point (2029) from any time past 2029. So from 2029 onwards we might be able to correct our mistakes as humans over and over again and iterate towards perfection (whatever that may be) as an asymptote. Nice!
Yes, that is the limitation of this type of time machine. Of course, this too will probably never be made, or at least not by man, so it's a moot. On the other hand, it may be possible to make the more powerful kind of time machine, the kind that can carry the time traveler AND itself back to before it was created. For all we know, that's what UFOs are, they could be time travelers, not aliens.
If a wormhole linked two galaxies, one with a greater overall mass and one with a much lesser overall mass, you could travel from the galaxy with the greater mass to the other galaxy with smaller mass via the wormhole and technically have travelled back in time, since the strength of gravity determines how time progresses. A stronger gravity well means time passes more slowly. However I believe that that phenomenon is linked to how long light takes to travel across space time. A gravity well causes space time to stretch due to the mass. Since gravitational lensing shows light actually moves with the curvature of space time, it would take longer for the light to reach the center of a massive gravity well. So in reality you wouldn’t have travelled back in time at all, but rather you’ll be experiencing the same time in a different perspective. I think photons are really the key to understanding this universe.
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