If you want to become antifragile, put yourself in the situation “loves mistakes”—to the right of “hates mistakes”—by making these numerous and small in harm. We will call this process and approach the “barbell” strategy.

Stick to a schedule most days, and once in a while, break it entirely. Both are critical to success. Some of the most ambitious people live the most boring lives—they know what they need to do, so they keep their head down and focus on that. But if you do that all the time, you risk becoming stagnant and stuck in your ways. (Yes, this is one place ... See more