Reading the comment about improving finger dexterity, I had to think of an elderly gentleman in my area who had to sell off his impressive collection of machines because he was in a downsizing phase. He explained to me, as I loaded a dozen or so of his typewriters into my car, that he only typed now to alleviate the pain of arthritis in his fingers. Nothing had worked for him prior to that, and he swore that a page or two a day kept the finger pain away…