How boxed in is cosmology by the cosmological principle? If we - as an example - didn't assume the cosmological constant was constant and expected it to vary over large distances, could we arrive at a working model of the universe? maybe high density dark matter/energy regions are the same as regions of high/low values of the CC. It's late.
I heard about big bounce/crunch models before, but thought they were discounted due to the acceleration of expansion, which suggests that gravity will not lead to a contraction. Does anyone understand how this new bounce model deals with that problem?
If inflation is naturally fast early, this model is already better than the previous bounce/crunch versions.
turnsout · 10h ago
Somehow this seems more intuitively "right" than a single Big Bang event, and raises fewer cosmological questions.
Unrelated but related - where does a ‘god’ fit into all of this? In other words, why do people and various religions still believe that ‘god’ made the universe? Heaven and earth?
quantified · 10h ago
Religion is malleable and the durable ones are unfalsifiable. They were told to believe it, or came across it and something got sparked in them. Maybe some god(s) caused the big bang(s)? Who knows? No evidence connects religion to reality.
mensetmanusman · 9h ago
God is defined as existence itself. Most people believe in the supernatural concept of free will. These are topics outside the realm of the scientific method though.
edit; did some digging - looks like its actually and active area: https://www.scirp.org/journal/paperinformation?paperid=13446...
https://www.port.ac.uk/news-events-and-blogs/news/new-theory...
Arxiv version of the paper:
https://arxiv.org/abs/2505.23877v1
If inflation is naturally fast early, this model is already better than the previous bounce/crunch versions.
Unrelated but related - where does a ‘god’ fit into all of this? In other words, why do people and various religions still believe that ‘god’ made the universe? Heaven and earth?