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End of the universe

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- Thu, 30 Apr 2015 21:22:45 EST ZJgVev/f No.55263
File: 1430443365769.jpg -(9277B / 9.06KB, 306x164) Thumbnail displayed, click image for full size. End of the universe
I know science doesn't care about our feelings, but tell me of any alternate theories other than everything freezing to death or being ripped to shreds that allows something, anything to keep on going and surviving.

Can we eventually develop the technology that allows us to "jump" to a new, younger or possibly truly unending universe with different laws of thermodynamics to carry ourselves on?

Hold me, /sagan/.
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Alan Guth - Thu, 30 Apr 2015 23:10:29 EST J5+DiH7Y No.55264 Reply
I don't know, man. eventually everything turns to iron if it's left around long enough.
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Johannes Kepler - Fri, 01 May 2015 00:33:40 EST Sa5XPNCk No.55265 Reply
You should take comfort in the fact that you as an individual will die long before any of these things come to pass! So ultimately in the story of Thomas Henderson none of these horrible fates will come to pass, because you will be super duper long dead.
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Jericho !.iRAtomic2 - Sat, 02 May 2015 03:26:30 EST maTIq9B/ No.55267 Reply
In his late 90s book Hyperspace, Michio Kaku mentions (vaguely and briefly) the possibility that our universe is split between a 4/6D pair of universes contained within the larger 10D universe, and that by the time heat death occurs (or a Big Crunch) occurs, any surviving society might be sufficiently advanced to harness the power of the collapsing universe and create a wormhole into the other one.

The biggest problem is the sheer amount of energy it takes. Mind bogglingly vast, and likely to be near impossible to control.
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Charles Messier - Sat, 02 May 2015 20:39:07 EST 6TbPsH2/ No.55271 Reply
The fact that anything exists at all is pretty much the biggest - well, it's technically the only problem in science.
Yeah, some scientists say things like "nothingness is unstable" and that may well be true. But if we can't figure out how nothing can turn into something - and why it turned into quarks, atoms, stars, planets, galaxies instead of something entirely different - there's no way we can say what will eventually happen.

But whether we're made out vibrating strings or just condensed balls of energy the only thing you need to know is,
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William Lassell - Sun, 03 May 2015 23:39:59 EST 3SVtd7YR No.55273 Reply
>>55271
maybe the collapse of the underlying universe can cause such things,
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Dinato - Tue, 22 Oct 2019 22:32:45 EST HeCUPa43 No.57831 Reply
>>55263
Seems to be lower levels of understanding pussy. How you gona just play about the ending of docta who?
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Roger Penrose - Fri, 25 Oct 2019 14:32:49 EST EZOyjhDZ No.57835 Reply
a) heat death is not about heat but about entropy. The time scales involved on here are mind boggling. To give you an idea it's the cosmic equivalent of using a lighter in your home to melt all the glaciers in the Himalayas, but worse.

b) the big rip is a consequence of an arbitrary pick of an unknown constant it might never happen. But if it does here is something a little fringe you have been asking for: Once the big rip starts to affect elementary particles something interesting is gonna happen. Elementary particles contain quarks and if you try to pull apart quarks you create new quarks. Which means after the big rip would have destroyed everything in our universe every single elementary particle will become it's own big bang and universe.

But all that is nothing compared to the multiverse.
You see the big bang is still happening across the multiverse and the amount of universes created over time is so large that you can't even compare it to anything inside our universe.
The closest thing are one of these bignum endless fractal zoom videos but with the speed of the zoom increasing by orders of magnitude each time unit.

I All this doesn't really help the existential dread about what happens to our own lives / universe...
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Roger Penrose - Fri, 25 Oct 2019 14:52:48 EST EZOyjhDZ No.57836 Reply
The closest thing there is to ponder about the fate of our universe after heat death are Boltzmann Brains.
Eventually given infinite time the random quantum fluctuations in the vacuum are going to create living "brains". This will happen spontaneously and actually you should call them "Boltzmann Constructs".
Because of the infinite time scales involved the complexity of the created structures can be arbitrary large.

I highly recommend watching Isaac Arthur's videos on the topic
https://www.youtube.com/playlist?list=PLIIOUpOge0LvHsTP5fm8oxB1qPS54sTMk

It rally gives you perspective on how ridiculous (but fun) it is to ponder these questions while living in a Kardashev level 0.724 type civilization.
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Antony Hewish - Sun, 15 Dec 2019 04:49:19 EST pVzAU3sG No.57916 Reply
>>55263
the quantum physics answer is yes, but actually no; there is no reason why an infinite set of universes with different cosmological constants can't exist, but there are many mathematical proofs showing why we can never observe them.
the closest thing to what you're describing would be a wormhole, at one end it would be whatever point in spacetime you entered, at the other end it would be whatever point in spacetime you traveled to. if your destination was 100 lightyears away, while your journey may have been observed by you to be less than 100 year, 100 years would still have passed between when you left and when you arrived, and both those arrival and destination points will always be 100 years apart from each other no matter how many times or how fast you make the voyage.

for the eventual fate of the universe, that all depends on the shape of spacetime; flat spacetime will extend infinitely in all directions until it has extended so far that matter can no longer interact, and the universe becomes homogeneous and no longer contains any discernable information.
positive curvature of spacetime means that it is finite and enclosed in itself, so it will expand in all directions until it collides with itself and bounces back, possibly resulting in the reverse of the big bang followed immediately by another big bang, like ripples in a pond bouncing against the shore and back out into the water.
negative curvature of spacetime means that it will expand to the maximum point of the curvature and then recede back towards the point of origin where it may bounce back as a big bang, or settle at the lowest point of curvature into one, small, hyperdense singularity of all spacetime.
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Caroline Herschel - Thu, 26 Dec 2019 05:02:06 EST zOq9VHOa No.57940 Reply
>>55264
> I—am IRONMAN
> our species becomes a clone army of The Iron Giant
I mean if we can just design a robot to build a robot humanoid out of what remains become Iron?
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b - Fri, 10 Jan 2020 01:39:29 EST X5wvlBRg No.57953 Reply
perhaps the constants that drive our mathematics and understanding of reality are not static and in a state of constant flux just as the quantum strings. If our universe turns out to be a closed loop and not an infinite expansion, then we may be able to use entropy to our advantage. if this shit is not infinite eventually we may be able to simulate every pixel of mass within this matrix of this universe (that has been observed) and see how it decays and transfers throughout time and eventually reprogram decay of electrons and cells
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Tadashi Nakajima - Thu, 20 Feb 2020 21:42:08 EST JvOVK4Sl No.57980 Reply
>>57953
>the laws of the universe are not static and are ever evolving

Big Yes.
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Joseph-Louis Lagrange - Mon, 23 Mar 2020 17:52:44 EST 0buNVSzu No.58016 Reply
create a simulation where an infinitesimal moment of time seems like an eternity
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Joseph-Louis Lagrange - Fri, 27 Mar 2020 16:02:59 EST zhzC7ZYp No.58030 Reply
1585339379901.png -(228071B / 222.73KB, 552x564) Thumbnail displayed, click image for full size.
>>55263
Humans design our gods and devils as infinite and eternal, because we are terrified of the fact that impermanence is the only constant. All of the desires that make us suffer the most are wishes for things not to change, or to change right away. They will. The universe doesn't appear to be headed for a big crunch, as poetic as that might be. It's ok! You can and will die. The universe can too. When it dies it will have concluded the grandest tableaux of stories we can even begin to imagine, and somehow: I doubt it will end there... Or it 'will', but the logical heuristic of an 'end' will not be final oblivion we imagine because we are flatlanders of the 3rd dimension trapped like amber in the 4th, or perhaps it will truly end, but it will only be one phosphorescent spark flanked by the countless other sparks of a firework show just beyond an opaque horizon that is profound to us, but elementary to infinity and eternity.

Don't sweat it homie, kick back and enjoy the show.
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Joseph von Fraunhofer - Sun, 29 Mar 2020 00:34:37 EST n+7z5RVF No.58032 Reply
>>55263
I like the hypothesis of what might come after universal heat death. If you know anything about Bose-Einstein condensates, you know that matter starts to act really weird when it gets close to 0°K. Groups of atoms and even molecules begin sharing quantum wave functions. Now imagine this on a universal scale. The whole universe and everything in it, whatever that might be, all having a single unified wave function. What might happen then? Given the untold eons of time available (assuming time will even still exist at that point) is is possible that the entire universe might experience some quantum event, say, tunnelling to "somewhere else"?
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Ejnar Hertzprung - Sat, 04 Apr 2020 08:48:51 EST IrtaaTPb No.58038 Reply
kek. you guys are replying to a thread from 2015.

>>57831 nice necro

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