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https://www.forbes.com/sites/startswithabang/2021/02/25/why-do-physicists-say-a-multiverse-has-to-exist/>
"When we look out at the Universe today, it simultaneously tells us two stories
about itself. One of those stories is written on the face of what the Universe
looks like today, and includes the stars and galaxies we have, how they’re
clustered and how they move, and what ingredients they’re made of. This is a
relatively straightforward story, and one that we’ve learned simply by
observing the Universe we see.
But the other story is how the Universe came to be the way it is today, and
that’s a story that requires a little more work to uncover. Sure, we can look
at objects at great distances, and that tells us what the Universe was like in
the distant past: when the light that’s arriving today was first emitted. But
we need to combine that with our theories of the Universe — the laws of physics
within the framework of the Big Bang — to interpret what occurred in the past.
When we do that, we see extraordinary evidence that our hot Big Bang was
preceded and set up by a prior phase: cosmic inflation. But in order for
inflation to give us a Universe consistent with what we observe, there’s an
unsettling appendage that comes along for the ride: a multiverse. Here’s why
physicists overwhelmingly claim that a multiverse must exist."
Via Muse.
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
