I'd like to start giving people the option of commenting on shorter Cold Takes pieces (which I don't cross-post here or provide audio for). I'm going to use this post for that: I will generally leave a comment for each piece, and people can leave their comments as replies to that.
You already expressed skepticism on the survey of Hadza happiness, but Kat Woods offers more on why such a survey might give inaccurate results. From the intro:
The four major issues she notes are:
This is from surveying in Rwanda and Uganda, which will certainly have many of the same difficulties as surveying Hadza. (It also surprised me article that the US and Mexico would have much higher self-reported happiness than, for example, Italy. I wonder if this is a real effect or if happiness surveying is fraught with cultural issues in general.)