From Yud's remarks on Xitter:
As much as people might like to joke about how little skill it takes to found a $2B investment fund, it isn't actually true that you can just saunter in as a psychotic IQ 80 person and do that.
Well, not with that attitude.
You must be skilled at persuasion, at wearing masks, at fitting in, at knowing what is expected of you;
If "wearing masks" really is a skill they need, then they are all susceptible to going insane and hiding it from their coworkers. Really makes you think (TM).
you must outperform other people also trying to do that, who'd like that $2B for themselves. Winning that competition requires g-factor and conscientious effort over a period.
zoom and enhance
g-factor
It's "general intelligence", the eugenicist wet dream of a supposedly quantitative measure of how the better class of humans do brain good.