My post on unknown knowns isn't really related to this sequence (and that's why I identified this post as the sequence's beginning), but that's just a nitpick. I'm trying hard to avoid making any prescriptive conclusions in my discussion of Sex at Dawn, and instead to stick to unraveling the evidence about the conditions under which human beings evolved.

Before I read the book, I thought that "polyamory as popularly defined is basically a kick in the teeth to evolution." Sex at Dawn makes a convincing case that the opposite is true, which may mean that polyamory is a better idea in the modern setting than I had thought. But I'm still very uncertain on that count, because the modern setting and the evolutionary setting are so different that what is adaptive in one is often totally crazy in the other.

If these assumptions were correct, the implication would be (1) this is a case where most people really are wrong/crazy and exposure to evidence makes people justifiably extreme, or else (2) you were admitting to becoming more extreme in your beliefs because something lead you to discount evidence that disconfirmed your preferred theory while remembering and repeating confirming evidence.

When I picked up the book, I was expecting that the case it made would be bad and that I might be tempted to agree with it anyway because I am generally a fan of polyamory. I can't say definitively one way or the other whether I succumbed to that temptation: the book's case seems like a very good one to me, which could either be true or the product of a motivated evaluation. I think that it's the former, but that is itself evidence that supports both hypotheses.

The admission implied that you were aware that you were grinding an axe of some sort... If you think I misinterpret the nature of your planned advocacy, please let me know :-)

The axe I'm grinding is, I suppose, that I don't think monogamy is built into the universal nature of human beings. This hardly seems like an axe to me, but a number of vehement objections seem to indicate otherwise.