dimensions, one behind the other. By giving these flat panels a 
diagonal twist they succeed each other, as it were, in a 
perspective from the “stand still” point. He is utterly aware that 
the disposition to this kind of illusionism results from the 
separation of the senses. Milton learned to make the same kind 
of visual illusion after his blindness. And by 1709 Bishop 
Berkeley in his New Theory of Vision  was denouncing the 
absurdity of Newtonian visual space as a mere abstract illusion 
severed from the sense of touch. The stripping of the senses 
and the interruption of their interplay in tactile synesthesia 
may well have been one of the effects of the Gutenberg 
technology. This process of separation and reduction of 
functions had certainly reached a critical point by the early 
seventeenth century when King Lear  appeared. But to 
determine how far such a revolution in the human sense life 
could have proceeded from Gutenberg technology calls for a