The universe is not infinite

This is actually a valid and cool theory

And those are sperm in a doughnut.Yes,it's spelled doughnut,not donut.

Sounds like John Green's next metaphor in his next book

I read a book that described the shape of the universe in almost the same way, except it said that to imagine the universe's shape, try imaging what person from a 2d world would think of a sphere

Fascinating.