A:  I thought all along that the most basic problem 
is implied in his most famous aphorism. It is: people 
do not appreciate having attention drawn to the 
medium of their own ability to communicate. You 
can’t draw attention to the way in which people 
assume that they have a basis for their knowledge. 
He was always twitting people and saying, “Well, 
you only believe that because, you know, such and 
such prevails as a bias in the way you’re doing 
something.” Nobody appreciated that at all. So he 
was constantly pulling hidden ground into the 
foreground, and people who were making their 
livelihood by being focused on a specific figure, 
they simply couldn’t handle that.