Scientists still don’t know where skills reside in the brain or how to describe what we know.
In fact, we’re not consciously aware of the vast majority of steps in how we do what we do every day.
Examples: No one can remember how they learned their native language. Almost everyone is wrong in how they describe the simple act of switching lanes in a car. And amnesia patients taught to play Tetris remember neither the teacher nor the game the next day—but they can play it.
In all these cases, knowledge remains unconscious.
— Adapted from Incognito, David Eagleman, Pantheon Books.