In the 1980s, when current Microsoft owners were still actively practicing programming, Steve Ballmer noticed that if he drank a little alcohol, his productivity increased. At the same time, if you consume too much alcohol, the productivity drops to zero. This means that somewhere between “treated as a glass” and “drunk and cut off” there is a moment when the positive effect of alcohol is maximum. Balmer conducted a series of natural experiments, and found that the ideal level of alcohol in the blood for programming is (in his case) about 0.13-0.14%. Translated into normal language, this is 1.3 – 1.4 promile, or about 2.5 liters of beer, and then in the process to catch up with 0.5 liters of beer every hour. Given that programming eventually made Balmer one of the richest people in the world, with a fortune of about $40 billion - this is his discovery should not be forgotten.