I'm extremely glad I don't work 90h/week, nor have I ever had to (my contract says 40h/week and that's usually how much I work - if I do overtime (rare) I usually get to adjust for that on a different day).<p>However, I'm not very invested in my work, and I genuinely wish I could work in a team with such esprit de corps and shared sense of purpose as the original Mac team.<p>I wonder if the two can only ever be had as a package deal.<p>I.e. if you are so invested in your work (probably a good thing, all else being equal), does it inevitably end up expanding beyond 40h/week (probably a bad thing, all else being equal)?