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(Forbes)   We fully expect that dark energy will lead to a heat death a long time from now. But there are at least 5 ways out   (forbes.com) divider line
    More: Interesting, Universe, Dark matter, dark energy, Big Bang, Physics, Physical cosmology, General relativity, Multiverse  
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501 clicks; posted to STEM » on 16 Aug 2021 at 8:45 AM (23 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



17 Comments     (+0 »)
View Voting Results: Smartest and Funniest
 
2021-08-16 9:05:16 AM  
We can't even sort out heat death from CARBON - let alone dark energy...
 
2021-08-16 9:12:47 AM  
I always thought it'd be neat if the universe would play out to a certain point and then start over. Imagine being stuck forever in a loop where you live out your life constantly along with everything else in the universe. So...

Big Bang -> Stuff -> You live/Die -> More stuff -> End/Reset-\/
^---------------------------------------------------------------------------|

Never ending loop. If that's the case I wonder how many times i typed this post so far and submitted it?
 
2021-08-16 9:16:49 AM  
This chart reminds me of my first girlfriend for some reason...

Fark user imageView Full Size
 
2021-08-16 9:17:02 AM  

Nimbull: I always thought it'd be neat if the universe would play out to a certain point and then start over. Imagine being stuck forever in a loop where you live out your life constantly along with everything else in the universe. So...

Big Bang -> Stuff -> You live/Die -> More stuff -> End/Reset-\/
^---------------------------------------------------------------------------|

Never ending loop. If that's the case I wonder how many times i typed this post so far and submitted it?


Last week the family and I went on vacation and my four year old daughter would periodically keep telling her brothers that we've been there before when it was in fact our first time there. She said it numerous times and was adamant about it. It was a little spooky.
 
2021-08-16 9:48:32 AM  
Wouldnt a reversal of the universe heat death violate every known laws of physics?

Also is it me or Hawking radiation is such a slow process that itll take tens if not thousands of trillions of years before the last black hole evaporates?

The universe has a long long long way to go still and if we want to stick around, we need to merge with machines/create some kind of matrix-like world and move our asses next to a black hole and have our matrix computer be powered by that black hole. If we manage to do that, humanity could live to the end of the universe.
 
2021-08-16 9:54:28 AM  

lolmao500: Also is it me or Hawking radiation is such a slow process that itll take tens if not thousands of trillions of years before the last black hole evaporates?


Ah yes just did the math...

A black hole the mass of the sun will take around 1064 years to evaporate... which is WAY more than thousands of trillions of years.

The biggest black holes still havent reached their maximum mass yet and will not for trillions of years still.

A 100 billion solar masses black hole would take 2×10100 years to evaporate sooooooooooooo yeah, the universe will be there for a lonnnnnnng ass time still with plenty of power to fuel a civilisation running on black hole energy.
 
2021-08-16 9:54:55 AM  
Fark user imageView Full Size
 
2021-08-16 9:58:03 AM  
INSUFFICIENT DATA FOR MEANINGFUL ANSWER.
 
2021-08-16 9:59:49 AM  

sxacho: INSUFFICIENT DATA FOR MEANINGFUL ANSWER.


or

ETHAN SIEGEL IS FINALLY WRITING SCI-FI.  NEEDS TO WORK ON CHARACTER DEVELOPMENT.
 
ZAZ [TotalFark]
2021-08-16 10:53:16 AM  
1. Vacuum decay

That means the universe could explode, probably at the speed of light so we never even notice but some theories have a very slow front like the Genesis device in the good Star Trek movie so we could see our doom approaching.

2. Restoring inflation

That's where we are now, in an inflating universe. It looks slow to us but our successors will see it taking only 10^-43 glirzbits on their time scale.

3, 4, 5

A miracle could occur.
 
2021-08-16 1:34:22 PM  
I really like Penrose Conformal Cyclic Cosmology - even if it's wrong it's somehow comforting to think there will be another Universe after this one.

What Happens After the Universe Ends?
Youtube PC2JOQ7z5L0
 
2021-08-16 2:37:16 PM  

max_rebo_groupie: Nimbull: I always thought it'd be neat if the universe would play out to a certain point and then start over. Imagine being stuck forever in a loop where you live out your life constantly along with everything else in the universe. So...

Big Bang -> Stuff -> You live/Die -> More stuff -> End/Reset-\/
^---------------------------------------------------------------------------|

Never ending loop. If that's the case I wonder how many times i typed this post so far and submitted it?

Last week the family and I went on vacation and my four year old daughter would periodically keep telling her brothers that we've been there before when it was in fact our first time there. She said it numerous times and was adamant about it. It was a little spooky.



Some kids remember before they get too old.  Ask her if she remembers what she did when she used to be big.
 
2021-08-16 3:07:22 PM  

lolmao500: lolmao500: Also is it me or Hawking radiation is such a slow process that itll take tens if not thousands of trillions of years before the last black hole evaporates?

Ah yes just did the math...

A black hole the mass of the sun will take around 1064 years to evaporate... which is WAY more than thousands of trillions of years.

The biggest black holes still havent reached their maximum mass yet and will not for trillions of years still.

A 100 billion solar masses black hole would take 2×10100 years to evaporate sooooooooooooo yeah, the universe will be there for a lonnnnnnng ass time still with plenty of power to fuel a civilisation running on black hole energy.


The Xeelee left this universe for one without dark matter.
 
2021-08-16 6:18:12 PM  

JustHereForThePics: This chart reminds me of my first girlfriend for some reason...

[Fark user image 425x346]


Was she missing a nipple?

/Username
 
2021-08-16 7:14:35 PM  

lolmao500: lolmao500: Also is it me or Hawking radiation is such a slow process that itll take tens if not thousands of trillions of years before the last black hole evaporates?

Ah yes just did the math...

A black hole the mass of the sun will take around 1064 years to evaporate... which is WAY more than thousands of trillions of years.

The biggest black holes still havent reached their maximum mass yet and will not for trillions of years still.

A 100 billion solar masses black hole would take 2×10100 years to evaporate sooooooooooooo yeah, the universe will be there for a lonnnnnnng ass time still with plenty of power to fuel a civilisation running on black hole energy.


encrypted-tbn0.gstatic.comView Full Size


Black holes don't actually evaporate the whole way. Once they reach a certain mass, they're no longer massive enough to maintain the singularity (or something) and they go off like really big firecracker.

The Futurama episode The Late Philip J Fry depicts what the end of the universe should look like according to that theory. Turns out, when your writing staff has more PhDs than some research departments, you can make a good cartoon for pedants.
 
2021-08-16 7:40:38 PM  

Nimbull: I always thought it'd be neat if the universe would play out to a certain point and then start over. Imagine being stuck forever in a loop where you live out your life constantly along with everything else in the universe. So...

Big Bang -> Stuff -> You live/Die -> More stuff -> End/Reset-\/
^---------------------------------------------------------------------------|

Never ending loop. If that's the case I wonder how many times i typed this post so far and submitted it?


pbfcomics.comView Full Size
 
2021-08-17 2:02:15 AM  
I'm just gonna hide in the closet.
 
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