“I’m not fond of the expression “How is (unrelated field X) going to apply in real life,” since it’s a lazy copout to learning; but I am perfectly happy knowing nothing about nature’s cruelest shape, the triangle. I rarely encounter them in real life, and when I do, I am never required to find “proof” that they exist. And if my life depended on finding the slope of something, I would not only welcome death with open arms; I would also try to get romantic with it in some way.”