In topology, the number of holes in an object is what matters, not its exact shape. So to a topologist, a coffee mug is literally identical to a donut (both have one hole), and your belt-looped jeans are just a weird multi-holed structure! These mathematicians reduce everyday objects to their "genus" (fancy word for hole count) and couldn't care less about trivial details like "is this a shirt or a fidget spinner?" Fun fact: this is why mathematicians joke that they can't tell the difference between their coffee cup and their donut at breakfast. The holes are all that matter in their delightfully warped reality!