We don’t just need to learn a task in order to perform it well; we need to overlearn it. Sounds like a recipe for disaster? Depends on your approach. I have to constantly remind myself that practice is supposed to make performing a task easier, not more difficult!
Do read the whole article before jumping to conclusions!
Whenever we learn to make a new movement, we form and then update an internal model—a “sensorimotor map”—which our nervous system uses to predict our muscles’ motions and the resistance they will encounter. As that internal model is refined over time, we’re able to cut down on unnecessary movements and eliminate wasted energy.