For me it was a combination of being around people much smarter than me (I got lucky and worked at some crazy places) and realizing how disfunctional they are.

For me it was a combination of being around people much smarter than me (I got lucky and worked at some crazy places) and realizing how disfunctional they are. There is some happy medium where you can be pretty smart and realize you are a normal person. I've met people that are about my intelligence, who have been better educated than me, and they think they are fucking brilliant and it's just tiring as shit. They are insufferable to be around. Honestly I think a lot of silicon valely/tech bro people are a fucking chore to deal with because they have this "I'm so smart" attitude. If you want to check your ego, try to prove yourself wrong, test theories, talk to people to get their perspective and actually try to understand them. At some point you realize how much you don't understand about the world, about other fields, and about other people's experience.