>>4448124I would argue it's because of better life outcomes, maybe relating to IQ, in the sense that most people here have shit lives and can't focus because of layers of stressors, work, debt, bad nutrition, poor parenting, mental illness, high neuroticism etc.
It's only my 2 cents but I've seen people achieve barely anything for years until they were married into better lives and suddenly achieve massively in a short space of time.
It's why shitty lives are such a tragedy.