Having worked in various countries of Europe with various different work cultures, I can guarantee you that at least in Software Development the productivity of working more than 8h a day regularly (you can get away with doing it for a week or two, but no further) is so much less than in with 8h/day or less, that you’re literally producing less results with your work in a whole long-hours day of work than you do in an 8h day.
In simple terms, tired people do negative work and people working long hours regularly end up chronically tired.
Maybe it works differently for people doing stuff that’s all about salesmanship (like Business Angel) for whom more hours means more “meets”, but in my personal experience it definitelly works as I described for people actually doing heavy thinking work that has to actually work rather than merelly doing talkie-talkie with hard to compare results and where efficiency is near impossible to measure.
Having worked in various countries of Europe with various different work cultures, I can guarantee you that at least in Software Development the productivity of working more than 8h a day regularly (you can get away with doing it for a week or two, but no further) is so much less than in with 8h/day or less, that you’re literally producing less results with your work in a whole long-hours day of work than you do in an 8h day.
In simple terms, tired people do negative work and people working long hours regularly end up chronically tired.
Maybe it works differently for people doing stuff that’s all about salesmanship (like Business Angel) for whom more hours means more “meets”, but in my personal experience it definitelly works as I described for people actually doing heavy thinking work that has to actually work rather than merelly doing talkie-talkie with hard to compare results and where efficiency is near impossible to measure.