From my point of view, if someone works 60h/week and you work 40h/week, yes, he's working 50% more than you, he's dealing with more situations, more clients, more meetings, more problems... if you and the other one have the same intelligence, he'll probably move faster. Ok, probably this is a simplification and the curve can get saturated at one point, because 9 pregnant women can't produce a baby in 1 month... but maybe the saturation point is not 60h/week, maybe it's higher.<p>In my case, I've accepted that my career is going to advance more slowly, I've weighed up my work/career and my life/happiness/family, and the last one weighed more.<p>Of course, as other colleagues have said, working smart, finding clients, thinking 80/20, focusing on goals, looking for patterns... and it will probably make the curve more vertical.<p>Where do you live? I think another variable is the work culture of the country, for example in Spain the work culture is now evolving to allow a better balance between life and work. In other countries in Europe, for example, this mentality of working without overtime is fully established.