[order-matters]

>when you look at any group of individuals in a tribe, survivorship bias will dictate that it all looks nice and rosy

there is a lot of conjecture in your overall post, but I think this is a fair takeaway you put at the end.

[stalfie]

Late reply, but in case you'll check I think most of what I said is sourced from sources of varying quality and salience, but at least it's sourced from somewhere. But I just typed it all out quickly without checking anything over, so a lot might be wrong. But it's not entirely pulled out of my ass at least.

Evolutionary history is of course always difficult. I think the loneliness part comes mostly from the kurzgesagt video on loneliness, as well as some other stuff here and there. Rate of infanticide is roughly correct with quick Google. Rest of tribal stuff is from a variety of books and high school social anthropology. I think I actually have the "reasoning for infanticide" part from sex at dawn, of all places.

I'm always scared to run a deep research service to find the counterpoints after I type this kind of stuff out, but feel free to do so for me and dress me down. At least survivorship bias is a classic that's pretty much always worth keeping in mind on any topic.