>if it's all about human nature, how do you explain a dramatic recent change?
It's difficult to tell if you're trolling or if you truly don't get it. At no point did the parent poster claim that 100% of a person's likelihood to found a tech start-up was nurture.
Consider this situation:
Nurture (U) and Nature (A) are both factors in a person's likelihood to start-up (L). If L = UxA, then a 37% drop in U would cause a 37% drop in L regardless of differences in natural abilities.
A good starting point if you're interested in the interplay between nurture and nature in human psychology is Steven Pinker's The Blank Slate.
It's difficult to tell if you're trolling or if you truly don't get it. At no point did the parent poster claim that 100% of a person's likelihood to found a tech start-up was nurture.
Consider this situation: Nurture (U) and Nature (A) are both factors in a person's likelihood to start-up (L). If L = UxA, then a 37% drop in U would cause a 37% drop in L regardless of differences in natural abilities.
A good starting point if you're interested in the interplay between nurture and nature in human psychology is Steven Pinker's The Blank Slate.