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How many holes does a rubber band have? A donut?
Topologically a rubber band, a donut, and a straw have the same number of holes. The hole at either end of the straw is just a continuation of the same one hole.
By that argument your mouth is a continuation of your asshole... No offense.
I mean… yeah
Some people haven't realized almost all animals are just tubes with various fancy shit glued on.
Edit: including humans
Or put biologically, virtually all fauna are just various advanced forms of flatworm.
Indeed, and when you kiss someone you are making one big hole connected by two assholes.
Anal 69s just make one big reverse-donut
Anal 69s just make one big reverse-donut
None of them have holes, usually. A hole goes from the outside of a volume to the inside. Those are all intact tori.
Take that cylinder and stretch it until it's a cube with two square cutouts in it. Stretch in some of the inner walls. Now you have a house, with a door and a window. Now: does the house have two holes - a door and a window - or does it have one hole?
I disagree. A rubber band and a donut do not have an 'in' and 'out'.
Stick your finger through a donut, does it go in one side and out the other?
A straw's "in" and "out" are completely arbitrary. You can flip a straw either way and it'd still work.
Anything with a hole through it that isn't perfectly 2D could have a "in" and "out" side. Your rubber band your doughnut only don't have one because nobody ever thought to define one.