Physicists Debate Hawking’s Idea That the Universe Had No Beginning
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Physicists Debate Hawking’s Idea That the Universe Had No Beginning
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Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#2Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#3Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#4Isn't Polaris Australis south of the South Pole? Was Hawking imagining an Earth-shaped space that isn't embedded in a larger space?
Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#5Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#6Curiously,Indian philosophy also propounds that the universe has neither a beginning nor an end.
Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#7Curiously,Indian philosophy also propounds that the universe has neither a beginning nor an end.
Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#8> “Asking what came before the Big Bang is meaningless ... It would be like asking what lies south of the South Pole.” Isn't Polaris Australis south of the South Pole? Was Hawking imagining an Earth-shaped space that isn't embedded in a larger space?
Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#9Re: Physicists Debate Hawking’s Idea That the Universe Had No Beginning
#10In the shuttlecock example, there is an assumption the shuttlecock is the Universe and there is nothing outside to observe the object. Same with "What's south of the south pole." It ignores the stars and galaxies past Earth itself.
There is also a theory there could be many other big bangs and universes next to our own, but they are all accelerating away from each other. We can't see the one next to ours because it's expanding itself, as is ours, and all these are moving away from each other. Imagine a room of beach balls and they're all just inflating, but also moving away from each other at the rate they're inflating. In you're inside one, it's not only impossible to see another one, but because of the speed-of-light speed limits, it's impossible to travel to another one or even provide/disprove it exists.
There are a lot of questions about what, if anything, is outside the observable universe. Are we sitting in a ball on some gigantic alien's coffee table?