Abstract

This note is a comment on Suppes's essay on the limits of rationality. The substantial point is that if a theory of rationality is conceived as a structure plus scope, then, contra Suppes, intuitive judgement is part of the theory of rationality because it is part of the scope of that theory. The point is supported by analogy with a learning theory. Finally, intuitive judgement and informal knowledge is suggested to be evidence of the irreducible vagueness of theory as opposed to irreducible limits on theory.