Luck plays such a big role in the world. But few people want to talk about it. If I say you got lucky, I look jealous. If I tell myself that I got lucky, I feel diminished. Maybe a better way to frame luck is by asking: what isn’t repeatable? And maybe better yet: The way to get luckier is to...

The fun part of behavioral finance is learning about how flawed other people can be. The hard part is trying to figure out how flawed you are, and what stories make sense to you but would seem crazy to others.