This is certainly an interesting idea, but I’m skeptical. I’ve noticed that a few practices have that effect (exercise, for example), but it seems to me that it’s more a matter of habitually exercising willpower than getting the right mix of experiences. Lots of extremely successful people just spend all their time doing whatever it is that they do well.
For example, when I read this pleasant profile of Richard Posner, I don’t imagine that he’s a great jurist because he goes to the zoo or plays with his cat; I imagine that he’s a great jurist because, aside from playing with his cat, eating, sleeping, and commuting, he spends all his time obsessing over the law.
Doubtful. The first person to invent an ‘expansionist’ drug, that turned users into hyper-competitive, rapidly-reproducing, high-achieving types—basically, a pill for being a Mormon—would have lots of offspring, lots of success, etc. Many people choose to abuse heroin, but many people also choose to abuse Adderall, or to use Piracetam or other similar substances. The success-druggies will outbreed and outcompete the orgasm-druggies, leading to more intense success-drugs and perpetuating the cycle.