[bawolff]

> When Plato says "let us all agree there exists a perfect blue independent of any real world blue", I want to argue that no, "blue" is a human construct and dependent on accidental biology.

Assuming some premise for the sake of an argument is not just a plato thing, and its not particularly relavent if the specific premise is true.

[NikolaNovak]

Oh for sure but I think it's a spectrum.

I find it most productive when the assumption is asked and granted for something uncertain, interpretable, subjective, etc. Or when we are just having fun :-)

If a) you are building a serious proposedmodel of reality and b) start with something demonstrably false, I'd have to be in a pretty specific mood to go with it :-D