A little can make a big difference. George Leonard expressed that idea in a similar fashion in his book Mastery. For him, the five extra minutes of work his the chief difference between an amateur and a master. In other words, “the five minutes” means giving the second effort.
Think about it. You want to learn cooking. If after each time you try a recipe, you give an extra five minutes to write about it. What was good. What went wrong. What you could improve the next time. Those extra five minutes in 10 years could be worth gold.
What are your five minutes?