i'm with you on most of these things (about web discussions and usability), but i'm wondering: where does "Rigid hierarchy is generally not how the human mind works" come from? because i usually tend to explain "how i think" (and more generally how i organize my mind, my world, myself, everything in me head) as hierarchical. i couldn't think of doing it any other way (or only on some substantially "more confusing" basis, at least for me). i need this "tree"-form about every kind of information in my life. i'd really like to dig a bit deeper into sources and stuff about this - i.e. "how we approach the world and everything", and how we organize our thinking - and this sounded like you had some pointers/links about that, maybe ..?