The Secret of Our Success

Henrich’s argument, once it clicks, is hard to unsee, our species didn’t get where it is on raw individual intelligence, it got here on cultural learning, the ability to copy and slowly refine what worked for the people around us across generations, even when nobody involved fully understands why it works. The stranded-explorer stories he opens with, people with every modern survival skill dying in environments that local populations navigated for centuries on inherited know-how alone, make the case more effectively than any abstract argument could.

What I appreciated is that this isn’t obvious going in the way the author frames it, he says up front this is a book about where you come from, and I expected something closer to a straightforward evolutionary biology text. Instead it built its case slowly, layering examples from food preparation to tool use to social norms, until the actual claim, that cultural transmission is doing more evolutionary work than raw cognition, felt earned rather than asserted.

I don’t have much to criticize here, mostly because the book stays disciplined about what it’s claiming and doesn’t overreach into territory it can’t support with examples. If anything I wanted a longer closing chapter connecting this back to something more modern, the historical and anthropological cases are compelling but the book ends before really pushing into what this means for how any of us learn or teach today. Still, this reshaped how I think about expertise generally, the idea that a lot of what looks like individual genius is really just a long chain of people copying and slightly improving on each other.