What a wonderful essay. I learned to type on a manual Underwood typewriter with a carriage return lever. I don't miss it, but there was something so satisfying about moving that lever and feeling the whole carriage move. It meant that I had typed another line, and had made progress. The thing I truly don't miss was not being able to afford a new ribbon, and having to move back over every character and type it again to make sure that it showed up because the ribbon was so dry. Or not being able to undo mistakes.