>According to mathematician Bernhard Riemann, the number of holes equals the number of times an object can be cut without resulting in two separate pieces. For a torus, you can cut it twice with it still remaining a single piece. For a circle or a ring, you can make just one cut along the boundary without causing separation. >Similarly, for a straw, you can make a single cut along its length. Any further cuts would separate it. Hence, a straw has a single hole. >Building on these ideas, topologists now use Betti numbers, introduced by Henri Poincaré, to define the number of holes. All answers double down on one result—a straw has exactly one hole. https://www.scienceabc.com/eyeopeners/how-many-holes-does-a-drinking-straw-have.html But since a straw has at least one hole in it, that means it is Holy. And we can take it to church services so the other parishioners can suck it.