So I'm planning a sequence on luminosity, which I defined in a Mental Crystallography footnote thus:

Introspective luminosity (or just "luminosity") is the subject of a sequence I have planned - this is a preparatory post of sorts. In a nutshell, I use it to mean the discernibility of mental states to their haver - if you're luminously happy, clap your hands.

Since I'm very attached to the word "luminosity" to describe this phenomenon, and I also noticed that people really didn't like the "crystal" metaphor from Mental Crystallography, I would like to poll LW about how to approach the possibility of a "light" metaphor re: luminosity. Karma balancer (linked for when it goes invisible).