Now that it is no longer possible to cite language as the defining difference between
It was, of course, natural for linguistic thinkers to assume that their particular mode of reasoning was crucial, but our technological history indicates otherwise. For them I propose a simple experiment: describe in words an abstract three-dimensional form that you have never seen before without forming an image of it in the mind's eye first. We are distinguished from other creatures not by what we have said but by what we have made. The Neanderthals' ability to reason visually was clearly inferior to ours. So it was us who developed superior technologies and took over the world.
I knew a cabinet maker who could neither speak nor hear, but had complete command of ...
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