Comment on He's gonna be walking for a little bit

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LwL@lemmy.world ⁨5⁩ ⁨days⁩ ago

Funnily enough that’s an example of two infinities that mathematically have the same cardinality (which is very often conflated with size since for general mathematical purposes that’s what it is) since you can map a bijection (i.e. every number in the first set has one and only one mapping in the second) between the two (and it’s as simple as f(n)=2n).

And intuitively that makes about as much (or rather, little) sense as the infinite hotel.

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