Nature builds things that are antifragile. In the case of evolution, nature uses disorder to grow stronger. Occasional starvation or going to the gym also makes you stronger, because you subject your body to stressors and gain from them.

Going to the gym is great for your body, but it's also great for your mind.

Going through puberty as a young girl is so confusing. This monster invades your body, changes things and makes things grow, and no one tells you what's going on.

Cancer is real-time evolution, and your body is the selective pressure.

We are victims of the post-Enlightenment view that the world functions like a sophisticated machine, to be understood like a textbook engineering problem and run by wonks. In other words, like a home appliance, not like the human body.

If I ask you to write down the last 4 digits of your social security number, and then take you out to lunch and ask you how many dentists there are in Manhattan, there's going to be a high correlation between those two numbers. What happens is that the number psychologically makes you feel confident.