Uncurving the Universe: Expansion After Big Bang & Energy Loss

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Discussion Overview

The discussion centers around the concepts of the universe's expansion following the Big Bang, particularly the idea of "uncurving" spacetime and the implications of energy loss associated with this process. Participants explore theoretical calculations related to the curvature of spacetime, black holes, and the energy required for various cosmic phenomena.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that the expansion of the universe may be viewed as the "uncurving" of spacetime from a singular point, questioning the nature of energy loss in this context.
  • Another participant expresses confusion regarding the terminology used, specifically the meanings of "uncurving," "inconceivable point," and "curving the universe in on itself," and requests clarification.
  • A participant attempts to clarify their earlier points by referencing calculations related to black holes and wormholes, and poses questions about the energy required to curve the observable universe.
  • One participant challenges the notion that a specific mass is required to create a black hole, stating that black holes can theoretically have any mass and that the formation process is distinct.
  • There is a disagreement regarding whether the expansion described in the Big Bang theory can be equated with the uncurving or unfolding of spacetime, with one participant asserting that it is primarily the expansion of space rather than an uncurving process.

Areas of Agreement / Disagreement

Participants express differing views on the concepts of uncurving spacetime and the nature of the universe's expansion, indicating that multiple competing interpretations exist within the discussion.

Contextual Notes

Some terms and concepts remain undefined or ambiguous, leading to confusion among participants. The discussion includes unresolved questions regarding the calculations of energy related to cosmic phenomena.

evelknee
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Is the expansion of the universe after the big bang just the the "uncurving" of space time from an inconceivable point? And if so, is the loss of energy that curved it that much the only thing that could allow it to "uncurve"? I hate to use the word loss of energy, but I'm not for sure where the energy that could curve the entire universe to a single point could go.

Also, can or has anyone calculated the energy it would take to curve the observable universe in on itself.

Thanks.
 
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I'm not sure what the "uncurving" of spacetime means, nor do I understand the concept of an "inconceivable point" and then to end it off, I have no idea what "curving the universe in on itself" could mean. Can you elaborate on these? Your questions do not seem to make sense but that could well be because I don't understand your terminology.
 
I'm sure it is my lack of understanding and my inability to form coherent questions. I'll try to break it up.We have calculated how much mass it would take to create a black hole where space time is so curved light can't escape.

We have attempted to calculate how much energy it would take to fold space time and create worm holes, and hopefully one day travel to the stars.

Can/has anyone attempted to calculate how much energy it would take to fold or curve the entire observable universe in on itself?

Is expansion as described in the big bang theory the uncurving or unfolding of space time?

And finally, If it is uncurving/unfolding what else could cause this besides a loss of energy or it being transferred to somewhere else?
 
evelknee said:
We have calculated how much mass it would take to create a black hole where space time is so curved light can't escape.
There is no such amount of mass. A black hole can theoretically have any mass. The process forming a black hole is different, but there is no need for a black hole to have a particular mass.

evelknee said:
Can/has anyone attempted to calculate how much energy it would take to fold or curve the entire observable universe in on itself?
It is not clear what you mean by this or how you imagine that this would proceed.

evelknee said:
Is expansion as described in the big bang theory the uncurving or unfolding of space time?
No. It is expansion of space. It is unclear what you mean by uncurving or unfolding, but do realize that it is mainly space-time that is curved. From observations we know that the purely spatial part is essentially flat.
 

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