People change really fast. You may think that xx is an idiot before, but two years later, he may become a great person in another field. His form, network, connections, resources, and way of thinking may have changed dramatically. Some people who seem perfect from historical results may become weak and incompetent and lose their decisiveness after some key events happen or the environment they are in changes dramatically. … twitter.com/i/web/status/18244... twitter.com/Svwang1/status/182...