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owr
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I know that there is by no means a definitive answer to this question, but, could someone list all the major current theories for what caused the big bang please?
Thank you
Thank you
Tanelorn said:Hi Owr, Unfortunately I haven't seen a real ultimate cause in any theory.
owr said:..., could someone list all the major current theories for what caused the big bang please?...
And he also mentioned something I'm interested in.bcrowell said:...Owr didn't ask about an ultimate cause, just about a cause for the big bang.
bcrowell said:... In one such approach, called loop quantum cosmology, the result seems to be that the big bang is a bounce, so that the time axis extends on both sides of t=0...
The major ones?owr said:I know that there is by no means a definitive answer to this question, but, could someone list all the major current theories for what caused the big bang please?
Thank you
DavidMcC said:A combination of Smolin's LQG and his fecund universes (FU) looks much closer to the mark. A pity he, himself, rejected FU on spurious grounds, to do with a misconception of the relevance "natural selection" outside of biology.
Well, the difficulty there is how do you define "nothingness" in the first place? Most of our understanding of the universe relies upon some sort of background space-time, and even General Relativity, which has a dynamical space-time, can't describe "nothing". So how would you do that? I don't think anybody has come up with a sensible answer.epenguin said:I thought that one well-regarded idea was that nothingness is unstable and so collapses into something and then a little something is also unstable so it inflates into a big something or rather a massive something very fast, all something to do with a Mexican hat, I am sure someone knows what I am talking about even if I don't.
As well as the what I am talking about there was also a why which I am even less clear about.
The Big Bang is the scientific theory that explains the origin of the universe. It suggests that the universe began as a singularity, a point of infinite density and temperature, and then rapidly expanded about 13.8 billion years ago.
Currently, there is no definitive answer to what caused the Big Bang. Some theories suggest that it was a result of quantum fluctuations or the collision of two branes in a higher dimensional space. However, the true cause remains a mystery.
The concept of "before" the Big Bang is difficult to understand because the Big Bang created space and time as we know it. Therefore, the question is not well-defined in the context of the Big Bang theory.
The Big Bang theory is supported by various forms of evidence, including the cosmic microwave background radiation, the abundance of light elements in the universe, and the expansion of the universe. Additionally, observations of distant galaxies and the redshift of light provide further evidence for the Big Bang.
The Big Bang theory does not rule out the possibility of a higher power or creator. It is a scientific explanation for the origin of the universe based on observable evidence and does not make claims about the existence or non-existence of a deity.