I moved the big meta-level comment thread from "Yes Requires the Possibility of No" over to here, since it seemed mostly unrelated to that top-level post. This not being on frontpage also makes it easier for people to just directly discuss the moderation and meta-level norms.
Why not write a meta-level post about the general class of problem for which the abstract reasoning doesn't apply? That could be an interesting post!
I'm guessing you might be thinking something along the lines of, "The 'draw category boundaries around clusters of high density in configuration space' moral doesn't apply straightfowardly to things that are socially constructed by collective agreement"? (Examples: money, or Christmas. These things exist, but only because everyone agrees that they exist.)
I personally want to do more thinking about how social construction works (I have some preliminary thoughts on the matter that I haven't finished fleshing out yet), and might write such a post myself eventually!