> However, one engineer working 80 hours a week is significantly more productive than two engineers working 40 hours a week Disagree! An engineer working 80 ho

> However, one engineer working 80 hours a week is significantly more productive than two engineers working 40 hours a week Disagree! An engineer working 80 hours a week will make worse decisions, understand things more slowly, get more confused by bugs, and make poorer decisions overall. The net productivity will be lower. Some of the best programmers I know turn into terrible programmers after one long day. If you make that long day Friday, you might be able to squeeze 45 high-quality hours out of them in a week.