(November 18, 2010 at 1:59 am)ib.me.ub Wrote: Umm, interesting. Well I don't think there was a big bang at all. Why did there have to be a big bang anyway?
There was some cosmic event that caused a non-spatial state of affairs to become spatial. That's what the "big bang" is, the birth of space-time from what is called "the singularity", and the "singularity" is misleading, It's a result of Einstein's equations breaking down because relativity is dependent on frames of reference in space-time without that option you get a mathematical singularity.
That being said, we have very good reasons for expecting that this spacetime birth did happen in a way much like described by the "Big bang", namely extrapolating the expansion of the universe, the CMBR etc.
To say that you "don't think there was a big bang" is essentially to say "I'm not going to believe the conclusions reached by our very best understandings of cosmology to date" which in a sense is understandable (in the "absolute" sense) but tentatively it's more than reasonable to make that conclusion.
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