really? HN crowd is talking about 10 hr days as “exhausting” ? i can’t remember the last time i worked less than 5x10.
I understand working like crazy for things like starting a company/grad school/career change, but those things all last a limited time and come to an end.
Then you have others who are more used to billable time or flex work or similar where they view that 5-6 hours (+ breaks and food) as an '8 hour' day and the two can't understand how the other manages.
Lucky is the person who can throw themselves at problems 10+ hours a day and look forward to going back to it the next day, I guess. I can easily and happily do that in the 6-8 range and feel proud of the previous day's work and be ready to do it again the next day.