PGP Club!On a serious note, I would say it depends on what time frame you're referring to.If you're talking about right now this minute. The army, the police, the government. If you're talking over a few days/weeks/months, then it is memes. If you mean over years and decades, then it is the business cycle, interest rates, particularly investment allocations, and if you mean over many decades or centuries it is economics writ large with demographics/, and if you mean over thousands of years then it is biology, and if you're talking millions, billions of years, then it must be ultimately pgp club.