Exactly. You have to internalize the process of "calculate" so that it's automatic, and occurs without thinking. And for other processes as well. My favorite te

Exactly. You have to internalize the process of "calculate" so that it's automatic, and occurs without thinking. And for other processes as well. My favorite teacher and I used to refer to it as "moving things into muscle memory". We're guitarists, but I imagine the conceit transfers to other instruments as well.