Any increase in productivity will be compensated for by an exact opposite later.
But mammals work that way, we have a sleep and wake cycle because in our average state we would be luggage. Similarly, many engineers have a few fruitful hours a day together with meetings and administrative things where sleepiness and passivity are better than awareness that could lead to aggressiveness and impatience.
My own experience is that colleagues that strategically drink lots of caffeine are good on new development projects. I would be more cautious on other roles as caffeine inhibits peripheral thinking. For example, on caffeine, you may too quickly discard causes in a core analysis or overlook a compatibility issue in a change. You may also make mistakes in new development but mistaken progress is on average better than over caution in new development.
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But mammals work that way, we have a sleep and wake cycle because in our average state we would be luggage. Similarly, many engineers have a few fruitful hours a day together with meetings and administrative things where sleepiness and passivity are better than awareness that could lead to aggressiveness and impatience.
My own experience is that colleagues that strategically drink lots of caffeine are good on new development projects. I would be more cautious on other roles as caffeine inhibits peripheral thinking. For example, on caffeine, you may too quickly discard causes in a core analysis or overlook a compatibility issue in a change. You may also make mistakes in new development but mistaken progress is on average better than over caution in new development.