Introducing Familiar, a quantified reasoning assistant (feedback sought!)
tl;dr: I'm making a thing that uses probabilistic graphical models to assist in drawing inferences from personal data. You should check it out, and share with me your wisdom/user experience. I had this not-completely-original idea that there should be some kind of tool for easily performing statistical inference on Quantified...
Some of the weird suns are into postrationality, as I would define it, but most of them aren't. (That, or, they keep their affiliation with postrationality secret, which is plausible enough given their commitment to opsec.)
I would add The Timeless Way of Building to the list of primary texts, Chistopher Alexander has been a huge influence for many of us.