i think in part 3 morris seriously lost his way. i like this style of intellectual writing, a kind free-associative set of moves between ideas, figures, objects. morris arrives at many interesting moments. what he doesn't arrive at is anything that actually bears on kuhn. you begin to see that it's an act of vengeance; well, morris apparently has very good reasons to regard kuhn as an intolerant person etc. but then to take his "hint" that he got 'incommensurability' from mathematics, and get to intolerance by a possible pythagorean execution in whatever b.c. doesn't actually work, even a little, and if hippasus was executed, he was executed precisely for incommensurability. but whether he was executed or why or what the pythagoreans thought or did is just breathtakingly irrelevant to kuhn, and though free association is fun, it is not likely to refute anyone's philosophy of science. if kuhn had said, 'i take my concept of incommensurability directly from maths, and it means exactly the same when i use it with regard to scientific paradigms,' you might have something. but what he said was more like 'i think i ran into the word in eighth-grade algebra.' insofar as there is an argument it's the old argument: this is relativism, irrealism etc. all the math stuff does less than no actual argumentative work, and you begin to realize that he's just grinding an axe. just leave it at: thomas kuhn was a jerk who chainsmoked and threw and ashtray at me and plus his theory is wrong. then write something else about the pythagoreans if you're interested intrinsically.