I don’t think there’s any serious cosmologists
who would suggest there’s a physical boundary to the universe.
I’m by no means one but have been reading around the subject since Hawking’s death. If I’ve understood it correctly then you can get around having a physical boundary by curving spacetime.
Things start getting really weird when you start looking at multiverses.
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wheresthefish Partly filled with wrong, Wed 27 Jun 2018, 8:40,
Reply)
Metaphysicians have been talking about this stuff for centuries.
Kant deals with it in the first Critique.
My hot take: there's no meaningful answer to be had to questions like "does the Universe have a boundary?", therefore it's a non-question, therefore don't waste your time asking it. Have an ice-cream instead.
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Enzyme is powered by sunlight, Wed 27 Jun 2018, 15:43,
Reply)
things get really weird the smaller you go too
but we found a limit/boundary with the planck length where things get really fuzzy so perhaps we're just reaching our upper limit/boundary at the other end of the scale. not to say that there is nothing going on beyond but that we are currently unable to articulate it. maybe.
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artifus is doing it all wrong, Wed 27 Jun 2018, 16:52,
Reply)