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How many holes does a donut have?
Now make the donut higher. A lot higher. Now you have a donut-tunnel. Now make the walls thinner. Now shrink it. Now you have a straw.
One hole.
This seems overly reductionist to the point where I could just as easily describe my mouth and my anus as the same hole.
It's perfectly reductionist. You have defined our biology in exactly the same way medical texts do.
Yeah, that's a concept that gets covered extensively in anatomy, immunology, and microbiology. It's called "the donut model". This is not a joke. It clearly shows how your digestive system is exposed to the outside world, similar to skin. You can obviously see why this is important immunologically, since germs can just get into the mouth/butthole in a way that they can't penetrate skin.
It's one long hole.
Yes. It's called the gastrointestinal tract.
Now you're getting it!
that is actually the case. there is an unimpeded path from your mouth to your anus
Because they are the same hole. Welcome to topology
I understand geometrically they have the same number of holes but in my head straws still have two holes because they have an "inside" so both entrances to the inside have to be a hole.
That's because a straw has two more holes than a sphere.
Now take that straw and tie a knot in the middle of it.