Bigbang and the begginnig of time

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    Bigbang Time
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Discussion Overview

The discussion centers on the nature of the Big Bang, exploring what may have occurred at that moment, the concept of time, and the state of the universe prior to the Big Bang. Participants examine theoretical implications and the limitations of the Big Bang model in addressing the origin of the universe.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question what an observer would have seen at the Big Bang and whether there was "absolutely nothing" before it, raising philosophical implications.
  • Others clarify that the Big Bang model does not address the origin of the universe and only describes the evolution of the universe after a certain point in time.
  • It is noted that the Big Bang theory does not make definitive statements about the singularity or conditions prior to it, focusing instead on the universe's evolution starting from a specific moment.
  • One participant asserts that the Big Bang theory claims the universe started from a point, while another strongly disagrees, stating that it describes a hot dense plasma of unknown size and shape, possibly infinite in extent.
  • Several participants mention various cosmological models and ideas that are being explored regarding the Big Bang, emphasizing that these ideas are not experimentally confirmed and that the debate is ongoing.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the Big Bang, particularly regarding whether it originated from a point and the implications of "nothingness" before the event. There is no consensus on these issues, and multiple competing views remain.

Contextual Notes

The discussion highlights limitations in the Big Bang model, particularly its inability to address the singularity or conditions preceding the Big Bang. There are also unresolved assumptions regarding the nature of the universe at that time.

adjacent
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What could have been happened in the bigbang.If there were an observer what would s/he see.
And were there absolutely Nothing before big bang,Does that make any sense?
 
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The big bang model does not attempt to address the origin of the universe. It's only applies to the post inflationary universe.
 
The big bang theory does not make any statement about the singularity or if anything came before. It is a theory of how the universe evolved starting at about one Plank time after the singularity.
 
But bigbang theory claims that the universe started from a point.Am I right?
 
adjacent said:
But bigbang theory claims that the universe started from a point.Am I right?

Most emphatically NOT. The universe in the big bang theory is a hot dense plasma of unknown size and shape but DEFINITELY not a point. It might have been infinite in extent.
 
There are many different ideas cosmologists are pursuing about what might have happened at the big bang, none of them are experimentally confirmed. The debate is ongoing. Google these terms for some of these ideas: (there are probably many more)
loop quantum cosmology
eternal inflation
ekpyrotic universe
conformal cyclic cosmology
string gas cosmology
matter bounce
Gott-Li
Caroll/Chen
Braum Framptn
Cosmic natural Selection
 

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