Yeah, I was nervous putting that in there, because I think beyond a certain level, long hours start to tell in other ways. Some of the people I'm thinking of we

Yeah, I was nervous putting that in there, because I think beyond a certain level, long hours start to tell in other ways. Some of the people I'm thinking of were contractors and would take months off at a time when they weren't working super hard. Some of them simply allowed their work to take up an unreasonable portion of their life, which then sometimes had negative effects on health down the road. I've also seen multiple times when '10x' engineers did a crazy hack working late into the night, which was lauded by managers, but actually had to be entirely rewritten over much longer by less lauded engineers. Lack of sleep probably impedes coding ability as much as alcohol (and that's another factor I've seen create big chunks of code that needed to be rewritten).