A very skilled reader can read text at around 400wpm with good comprehension, so I can believe he can listen to code at those speeds. A professional typist is

A very skilled reader can read text at around 400wpm with good comprehension, so I can believe he can listen to code at those speeds. A professional typist is somewhere around 80wpm, and a stenographer can reach up to 250wpm. 450 would have to represent an enormous innovation in typing methods. Frankly, even if you could, 450wpm would be an irresponsible speed to code at. As mediocre as my own typing speed is, it's never the limiting factor when I code. There's just too much to consider.