[seanc]

We're not as far apart as you might think. Clock time is correlated with performance, but by no means determinative. More important is initiative, enthusiasm, leadership, reliability, etc. All in, I work very little overtime.

And you're right, this is a marathon, and working sustainably is absolutely the most important thing. One can do both. If you love what you build and you're leading a balanced life then I would say you're Doing It Right.