[psidium]

I do not have the time now to craft you a full answer as I don’t have the book on hand and have only been commenting from memory so far. But to give you a quick answer: I don’t think all of it is shallow, especially given the format: the book is mostly a prose re-writing of the author’s own peer-reviewed anthropology scientific papers. Most of the authors claims are backed by actual papers for reference on the footnotes. As for replication it seems that the author himself replicated some of his studies with different hunter gatherer societies in the world. It’s been a good while since I read it.

I can tell you from my personal experience that the info there has helped me understand the differences between how people think in Brazil (where I come from) and how people think here in the US. Could it be me pattern matching? Possibly

I wouldn’t expect all of it to be true, but I would be very surprised if most of the sources the author provide are false or lack theory and tests, since he explain control groups and experiments in details.

I’m not that married to the book either, as I find some claims rather bold (like the Italy divide)

The title does sound catchy tho

Edit; the author’s main point is how the papal rule on monogamy changed Europe and its colonies to this day, which I didn’t capture on my main comment. Lots to unpack there

[adwn]

> I don’t think all of it is shallow, especially given the format: the book is mostly a prose re-writing of the author’s own peer-reviewed anthropology scientific papers.

That's not the issue. The replication crisis is the phenomenon that many scientific results and conclusions which originate from serious, peer-reviewed research, couldn't be replicated by other researchers, and sometimes not even by the original scientist. This is especially concerning because many results with strong statements – unintuitive ones as well as bias-confirming ones – turned out to be non-existent [1]. It doesn't necessarily have anything to do with "shallowness" or "cocktail-party takes", although the strength of the purported effects, combined with pop-science simplifications and reductions, lend themselves well to such memetically spreading factoids.

[1] The "softer" sciences tend to be much more affected by this than the "harder" sciences.

[psidium]

But I said the book does offer replication studies in different populations in different continents, albeit from the same author

[adwn]

No idea why this is getting downvoted. Everything I wrote is true and directly on topic. Further reading: https://en.wikipedia.org/wiki/Replication_crisis