There is a very important concept that was introduced by Nassim Taleb. And that is antifragility. Antifragility is essentially resilience 2.0. Resilience 1.0 is when we put pressure on a system. After the pressure is lifted, that system goes back to its original form. Antifragility takes this idea a step further. You put pressure on a system. It actually grows bigger, stronger. We see antifragile systems all around us and within us. For example, our muscular system, we go to the gym and we lift weights. We're putting pressure on our muscles. What happens as a result, we actually grow stronger. We're an antifragile system. On the psychological level, you know what that's called? PTG, post traumatic growth. So where post-traumatic stress disorder, PTSD, is about breaking down post traumatic growth is about growing stronger as a result of pressure of stress. It's antifragility.