Agreed. Bobby Fisher got there in less than 10 years.
https://problogservice.com/2012/03/15/what-malcolm-gladwell-...
The problem is, Gladwell never said you needed 10,000 hours to be an expert, you need 10,000 hours to be a phenom. To be so freakishly awesome, to be such a standout among your peers, that sometimes your first name is enough to tell people who you are: Peyton. Tiger. Venus. Kobe. Oprah.
But in the meantime, here’s what Malcolm Gladwell said about the 10,000 hour rule and being an outlier:
“In fact, by the age of twenty, the elite performers (violinists) had each totaled ten thousand hours of practice.” — p. 38
“The emerging picture from such studies is that ten thousand hours of practice is required to achieve the level of mastery associated with being a world-class expert—in anything,” writes the neurologist Daniel Levitin. — p. 40
“To become a chess grandmaster also seems to take about ten years. (Only the legendary Bobby Fisher got to that elite level in less than that amount of time: it took him nine years.) And what’s ten years? Well, it’s roughly how long it takes to put in ten thousand hours of hard practice. Ten thousand hours is the magic number of greatness.” — p. 41