I haven’t had much to say lately because of my lack of readership, sadly. But a noteworthy moment in my book group meeting last night in which one of the men — a very immature young man whose contributions have been hit or miss — pretty clearly and in detail articulated Carnap’s diagnostic notion of external question as we found ourselves going around and around on how to confirm or disconfirm some of Berkeley’s claims about the nature of objects. (We are in the Second Dialogue between Hylas and Philonous.) And when pressed then hung some detail on it as a way of cutting off the circular debate. Very cool.