The rest of that sentence:

> I can say that, when writing by hand, one is continually solving a series of small problems having to do with the spacing of words, how letters are connected, the crossing of the letter t (sometimes more than one in the same word) and the dotting of the letters i and j, and how to accomplish all of those things through coordinated movements not just of the fingers but of the whole arm.

Do you think he needs to be a neuroscientist to make this claim?