People who say typing is not their bottleneck are saying they are not I/O bound but CPU bound. Makes me think what other things you need to improve before you notice your typing can't keep up? But that's kind of backwards. You will never know until you can type fast and freely, liberating your brain to actually think about the problem and code and not finding keys on the keyboard. Besides not everything you do is original and new or inventive. Sometimes you are just doing crap that you know how to do already, and typing or not using smart editor is the bottleneck. But people who can't type usually don't know this. What you don't know can't hurt you, or it can perhaps?