I don't think this conflicts with the OP premise. Making something take longer/be harder is a common trick to help you learn something. Like reading out loud he

I don't think this conflicts with the OP premise. Making something take longer/be harder is a common trick to help you learn something. Like reading out loud helps you remember what you read more than just reading silently in your head. That doesn't mean that in cases where you are not trying to learn that typing would be better as using less mental energy means you have more to spare for other uses.