I went to the gym in the evening, certain I'd found a secret empty loophole. Forty people were already there. A man was curling dumbbells in jeans. That's when it hit me: these are not my people. Different species entirely. I started sorting the whole world into two — readers and non-readers, savers and spenders, talkers and listeners — until I noticed I'm standing in both piles. We're all walking contradictions with a strong opinion about coffee.