The Anatomy of Muscle Memory: How Your Brain Maps Brushstrokes
“Steady hands” do not exist. What exists is a brain that has mapped the required tension, speed, and pressure for a specific movement so well that it no longer needs to think about it.
deliberate-practice
Deliberate Practice vs. Mindless Doodling
When you doodle, you rely on the shapes and lines you already know how to make. You are not challenging your brain. You are not stretching your coordination.