Possibly. Not good news.
The reason the Universe appears finite in size to us?—?the reason we can’t see anything that’s more than a specific distance away?—?isn’t because the Universe is actually finite in size, but is rather because the Universe has only existed in its present state for a finite amount of time. If you learn nothing else about the Big Bang, it should be this: the Universe was not constant in space or in time, but rather has evolved from a more uniform, hotter, denser state to a clumpier, cooler and more diffuse state today.
This has given us a rich Universe, replete with many generations of stars, an ultra-cold background of leftover radiation, galaxies expanding away from us ever-more-rapidly the more distant they are, with a limit to how far back we can see. That limit is set by the distance that light has had the ability to travel since the instant of the Big Bang.
But this in no way means that there isn’t more Universe out there beyond the portion that’s accessible to us. In fact, from both observational and theoretical points-of-view, we have every reason to believe there’s plenty more, and perhaps even infinitely more.
Is there some reason that this scene reminds me of the time the used car salesman disappeared with my charge card?
And the whole thing ends in moralistic sludge too:
It means it’s up to you to make this Universe count. Make the choices that leave you with no regrets: take the dream job, stand up for yourself, navigate through the pitfalls as best you can, and go all-out every day of your life. There is no other Universe that has this version of you in it, and there is no future for you other than the one you live yourself into.
Oh well, then, we should just ignore all claims for a multiverse and live as best we can. In other words, there is no evidence ad never will be.
See also: Not only is earth one nice planet among many, but our entire universe is lost in a crowd
The multiverse: Where everything turns out to be true, except philosophy and religion
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