https://www.nber.org/papers/w28785 Lumosity brain games shows that learning drops in presence of high air pollution
https://www.nber.org/papers/w28785 Lumosity brain games shows that learning drops in presence of high air pollution
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https://www.lesswrong.com/posts/nvRauqCD3u5hdkLm9/chess-and-cheap-ways-to-check-day-to-day-variance-in "Thirdly, having a good day at chess seems pretty strongly associated with having a good day at high-cognition-requiring tasks in general. In fact, it seems like a better predictor of this than asking myself 'do I expect to be good at cognition today?'."