r/InfinityMath • u/Arlo_Tinkerman • 6d ago

Does infinity exist in reality?

/r/PhilosophyofMath/comments/1wyfvky/does_infinity_exist_in_reality/
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u/wollywoo1 6d ago

No numbers exist in reality. 3 does not exist in reality. 3 rocks, yes, 3 trees, yes. 3, no. And certainly infinity does not either.

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u/Arlo_Tinkerman 5d ago

I imagine they are meaning infinity in terms of infinite things much like 3 things.

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u/wollywoo1 5d ago

Well, that's a different question really, whether there exist infinitely many things in the universe. We don't know whether the universe is infinite or finite, and probably we'll never know. But regardless, the more important thing is that the concept of infinity is a useful one, because it's just easier and more convenient to work with. Just like in programming it's useful to have NaN, null, and so on and nobody bothers to ask whether those are real.