Antifragility is beyond resilience or robustness. The resilient resists shocks and stays the same; the antifragile gets better.

Also, it's good to have more than one profession, in case your own profession goes out of style. A Wall Street trader who's also a belly dancer will do a lot better than a trader who winds up driving a taxi.

Maximum of an average is necessarily less volatile than the average maximum

Karl Marx, a visionary, figured out that you can control a slave much better by convincing him he is an employee.

In economic life and history more generally, just about everything of consequence comes from black swans; ordinary events have paltry effects in the long term.

We know from chaos theory that even if you had a perfect model of the world, you'd need infinite precision in order to predict future events. With sociopolitical or economic phenomena, we don't have anything like that.

I lift heavy weights and sprint, but I am so bad at it that I develop severe injuries.