This is an excellent talk describing  affective states of dispositions like love (and how they differ from feelings/sensations) and about the need for speculations to be tested in the everyday world we live in, to get away from the frictionless page/screen and into the affordances/resistances of our environs. One of the questioners tries to shift the focus to projecting ethics/health/norms onto dispositions and here I think that Wittgenstein wisely had nothing to say because one cannot talk categorically about such particular, diverse, and evolving assemblages without practicing pseudo-science, as the speaker say these matters are always already  under negotiation between the actors at hand.

http://www.vanderbilt.edu/AnS/philosophy/_people/_medina.html