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Could white holes actually exist? (www.space.com)

submitted 2 years ago by readbeanicecream@kbin.social to c/space@kbin.social

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White holes are mathematically possible, according to general relativity. But does that mean they're actually out there?

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[–] FfaerieOxide@kbin.social 1 points 2 years ago (1 children)

the singularity has infinite mass and infinite gravity, so there is no way it can gain mass; because infinity + 1 = infinity. It's the very nature of infinities. You can have a number of infinities, but manipulating them arithmetically always yields infinity. 2 x infinity = infinity. 3 / infinity = infinity.

Can't infinities be different sizes, though?

[–] sparseMatrix@kbin.social 1 points 2 years ago

@FfaerieOxide

@readbeanicecream @exscape

Thank you for linking that! I knew I had read that they could be, but I couldn't recall where. It might not have been Scientific American, but that'll do XD

While clearly they can be, infinity == infinity is still true, If I recall.

Also, I've got some simple problems with that crate analogy, Scientific American or not; any crate with an infinite number of anything inside it cannot be emptied, it's in the very definition of infinite. Consequently, neither crate will ever empty and the pairing will be an infinite pairing of apples and oranges.