In the daytime, you're supposed to work, whether you're in the flow or not. At night, if you're coding, it's because you're in the flow. So the phenomenom is ex

In the daytime, you're supposed to work, whether you're in the flow or not. At night, if you're coding, it's because you're in the flow. So the phenomenom is explained by a biased sample. Order people to work at 2 am and see what remains of this productivity boost.