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by WalterBright 3079 days ago
> I have seen crunch modes and they are less effective after few weeks.

This was studied extensively in WW2 where people wanted to work long hours to win the war. Productivity would rise when hours rose, and after a few weeks it would fall below that of a 40 hr week. The solution was to do longer hours in spurts.

This knowledge gets lost regularly and rediscovered.