It seems good to have an abstraction-level with separate concepts for soras and their weights.

I'm less enthusiastic about "sora" as the word for it, however, even though I like its aesthetics. Seems like it ought to be longer than 4 chars, and less isolated in meaning. I've wanted to find a more specific fit for the word "neureme" (from "emic unit"/"-eme",  categorising it as a unit of selection alongside gene, meme, morpheme, lexeme, grapheme, etc), and I like your concept for it.^[1] See here for my philosophy on word up-making [LW(p) · GW(p)].

1. ^{^}

   This just means I'll be using my word for it in my own notes, not that I'm recommending this relabelling for anyone else.