This is a repository for major, life-altering mistakes that you or others have made. Detailed accounts of specific mistakes are welcome, and so are mentions of general classes of mistakes that people often make. If similar repositories already exist (inside or outside of LW), links are greatly appreciated.
The purpose of this repository is to collect information about serious misjudgements and mistakes in order to help people avoid similar mistakes. (I am posting this repository because I'm trying to conduct a premortem on my life and figure out what catastrophic risks may screw me over in the near or far future.)
I am probably already cut off from most people in the world. A large fraction, possibly of a majority, of the world population can't speak any of the languages I can speak.
But I'm only ever going to interact with a tiny fraction of all the people in the world anyway, so that's not a big deal. And if I have to choose whether to have 150 wizard friends or 150 muggle friends, I'll surely pick the former.