Changed my mind from lack of particular opinion on SI to SI being complete cranks. Changed my mind from opinion that AIs may be dangerous, to much lower estimate of potential danger. (I have post history on Dmytry account to prove changing mind).
What changed your mind on the latter?
Admitting to being wrong isn't easy, but it's something we want to encourage.
So ... were you convinced by someone's arguments lately? Did you realize a heated disagreement was actually a misunderstanding? Here's the place to talk about it!