The 1,000-hour rule is that it takes 1,000 hours to become an expert in a certain field. The Thousand Hour Rule is a law stated by author Gladwell in his book Outliers. What makes geniuses outstanding in people's eyes is not superior talent, but continuous hard work.

One thousand hours of training is a necessary condition for anyone to transform from an ordinary person into a world-class master. He called this the thousand-hour rule.

Gladwell's experience

Born in Farnham, a small town in southeastern Hampshire, England. Gladwell once said that his mother was the object of his writing. When he was six years old, Gladwell's family moved to Elmira, Ontario, Canada. When he was 11 years old, his father allowed Gladwell to wander around the offices of the University of Waterloo where he worked to stimulate his interest in reading and libraries.

In high school, Gladwell was a promising middle-distance runner. In 1978, he won the 1,500-meter championship at the 14-year Ontario High School Championships in Kingston, Ontario.