If you consider the human ability to process sensory information in whole - all senses, it's not so surprising that someone with one fewer sense might perform at a higher rate with the other senses.
Or to put it the other way, there's a LOT of mental energy spent managing (especially filtering/categorizing) visual sensory information. Remove that distraction, and other senses get more processing power.
This is not to minimize the high performance of the essay author nor developer XXX, especially given the fairly sight-biased state of computing. But if you were to find some new change in your capabilities, with time and effort you could greatly enhance your performance in other ways.
Or to put it the other way, there's a LOT of mental energy spent managing (especially filtering/categorizing) visual sensory information. Remove that distraction, and other senses get more processing power.
This is not to minimize the high performance of the essay author nor developer XXX, especially given the fairly sight-biased state of computing. But if you were to find some new change in your capabilities, with time and effort you could greatly enhance your performance in other ways.