If I understod it right, in the first part of Pepa’s yesterday seminar Oscar talks about there was an argument from the limitation of discriminative powers of a given perceptual system of representation to the failure of generality constraint. I wasn’t clear however how the argument could succeed.
Suppose the pigeons discriminate between 40 pecks and 50 pecks but fail to discriminate between 48 pecks and 50 pecks, so that are able to think:
(1) 40 pecks is different from 50 pecks.
(2) 40 pecks is different from 48 pecks.
It seems true that due to the limits alluded to the pigeons can not think
(3) 48 pecks is different from 50 pecks
as opposed to
(3#) 50 pecks is different from 50 pecks.
But in order for generality constraint to be put in jeopardy it seems one would need the lack of ability to think (3) (and thus (3#)) period, and nothing about the limitation mentioned seems enough to substantiate this latter contention.
I might be misconstruing something in the situation, can anyone help?