Can Life Exist in the Universe or Multiverse After the Big Crunch?

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SUMMARY

The discussion centers on the viability of life existing in the universe or multiverse after the Big Crunch. Participants conclude that life cannot exist post-Big Crunch due to the universe collapsing to a singularity where known physics disintegrates. The conversation also touches on tachyons, particles that travel faster than light, but ultimately agrees that their existence does not alter the outcome of the universe's end. The consensus is that both the universe and all life within it cease to exist after the Big Crunch.

PREREQUISITES
  • Understanding of the Big Crunch theory
  • Familiarity with tachyons and their properties
  • Basic knowledge of physics and cosmology
  • Concept of singularities in theoretical physics
NEXT STEPS
  • Research the implications of the Big Crunch on cosmic structures
  • Explore the properties and theoretical implications of tachyons
  • Study the concept of singularities in general relativity
  • Investigate alternative theories of the universe's fate, such as the Big Freeze or Big Rip
USEFUL FOR

Astronomers, physicists, cosmologists, and anyone interested in the ultimate fate of the universe and theoretical particle physics.

Hawking14
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After the Big Crunch, will the universe or multiverse support Life?
 
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Well, considering that it is a Big "Crunch" and that the universe will have shrunken down to a point that all known physics disintegrates, I'd say no.
 
Lamdbaenergy said:
Well, considering that it is a Big "Crunch" and that the universe will have shrunken down to a point that all known physics disintegrates, I'd say no.
Then what about Tachyons?
 
Tachyons?
I'm honestly not sure what those kinds of particles would have to do with the collapse of an entire universe.
 
I guess,Nothing! But there must be something like Tachyons having v=c... Right?
 
Hawking14 said:
I guess,Nothing! But there must be something like Tachyons having v=c... Right?

Tachyons are particles where the case of v > c always applies. Their velocities are always faster than c and they are forbidden from traveling any slower.
 
Oh Yeah, I forgot that... Sorry :)
 
Hawking14 said:
what about Tachyons?

If they exist, they exist within the universe, and if there's a Big Crunch, the universe ends, along with everything within it. So the answer to your question remains "no", as Lambdaenergy said.
 
Let me venture a guess. You think of the tachyons as having space-like world lines. And since the final singularity of the big crunch is space-like it might contain space-like curves i.e. tachyons. But the singularity is not part of space-time so the answer is no.
 
  • #10
Thank you all for your answers! It helped me a lot... :D
How to close this thread ? Mentors please close this thread...
 

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