The excellent Keith Code (google his A Twist of the Wrist books and DVDs) theorises that as a driver you have a certain number of concentration points to spend while you’re driving or riding. Let’s say a driver has 100 such points to spend while driving. A new driver, for example, might spend 20 of these mastering controls like gear-changing, use of pedals, indicating, while an experienced driver may use 2 points for such activities because they happen without thinking.