Boris Strugatsky. Powerless of this world (№ 173708)

Here's a thought: every alternative version of the story contains more social entropy than the actual exercise. Or in other words, the story develops in such a way that social entropy is not increased. The second theorem Clio. (But what about Troubled times? Genghis Khan, Tamerlane, Attila? This is micropotenza history of microfluctuations. And who knows: if Temujin strangled in childhood diphtheria, maybe there would be a substitute that generally would burn half the world...)