In the early to mid 90s, I worked at a Silicon Valley based software startup

… In the early to mid 90s, I worked at a Silicon Valley based software startup. We had something called "The Century Club". You made the club if you'd done 3 consecutive months in the last year without working less than 100 hours in any week of those months (averaging 100 hours was not good enough). More engineers were in the club than not. We were told that making the club was not mandatory, but nobody in the club was ever fired and most not in the club were eventually fired. The next startup I was at had a similar culture without the cute name. I remember my most exhausting stretch there was coming in on a Saturday morning, for a database migration that had to happen outside business hours, and working straight through without sleep (other than nodding off at the keyboard) until Monday afternoon. Our CEO was kind enough to bring us food. Even in regular times there, I would go exercise from 10-11 PM, and more often than not I'd go back to the office after. A decade later I was at Amazon. …