It Sounded Plausible: Forget Practicing 10,000 Hours—Do This Instead

Introduction: Why the “Magic Number” for Mastery is a Myth

Who doesn’t love a simple formula for success? The idea that exactly 10,000 hours of practice can transform anyone into a master of their craft is irresistibly appealing. It’s memorable, quantifiable, and feeds our cultural belief that hard work alone determines success. But like many compelling oversimplifications, the 10,000-hour rule crumbles under scientific scrutiny.

Where Did This Myth Come From?

The 10,000-hour rule emerged from Malcolm Gladwell’s bestseller Outliers, where he interpreted research by psychologist Anders Ericsson on violin students at Berlin’s Academy of Music. Gladwell characterized 10,000 hours of practice as a “magic number” for people seeking to achieve greatness, citing examples from the Beatles to Bill Gates. The concept became canon, and it has been echoed in countless workshops and websites as the secret to achieving excellence in any field. But here’s the problem: Experts, including Ericsson, say Gladwell mischaracterized the research he was citing.

What the Science Shows

Ericsson's original study found that elite violin students had accumulated an average of 10,000 hours of practice by age 20, not that every successful musician had passed this exact threshold. Half of the top performers hadn’t even reached 10,000 hours. Moreover, these students were nowhere near mastering their instrument: They were simply promising young musicians with years of development ahead.

The choice of the 10,000-hour figure itself was arbitrary: As Ericsson points out in Peak, Gladwell could have mentioned a different average, like the number of hours that the best violinists had practiced by age 18 (7,400 hours). But the number of hours they’d accumulated, on average, by age 20 was a rounder number. Recent research has further dismantled the myth. A 2019 study with tighter controls than the original experiment found that practice accounted for only 26% of performance differences between violinists, significantly less than the original study’s claim of 48%. Similarly, a 2016 meta-analysis of athletic performance found that deliberate practice explained just 18% of the difference between competitors.

Quality Over Quantity

In Focus, psychologist Daniel Goleman contends that the real revelation from expertise research is that the type of practice you engage in matters a lot more than the number of practice hours you accumulate. Goleman emphasizes that the key is deliberate practice: focused, goal-oriented training that pushes you beyond your comfort zone, ideally with expert guidance and immediate feedback. The idea isn’t just to practice the same sonata the same way over and over, but to adjust the way you practice over time so that you can get closer and closer to performing it the way you want to perform it.

This explains why simply putting in the time doesn’t guarantee that you’ll improve at the skill you’re trying to build. (If you practice the same flawed technique for 10,000 hours, you aren’t completing the kind of practice that will help you improve.) Plus, the law of diminishing returns likely applies to practice sessions anyway: Researchers observe that world-class performers tend to limit their intense practice to about four hours daily because it’s hard to sustain focused attention for much longer than that.

Experts contend that the 10,000-hour rule’s popularity reveals something troubling about our cultural obsession with meritocracy. The rule suggests that if we fail to achieve greatness, it’s our own fault because we simply didn’t practice enough. This mindset can harm our performance and even undermine our enjoyment of the activities we love. When we fixate on becoming the best rather than simply getting better, we may abandon activities we could genuinely enjoy. The rule also ignores the significant roles of genetics, personality, early experiences, and access to quality instruction—factors that likely all contribute more to expert performance than raw practice time.

The Real Path to Improvement

None of this means practice is irrelevant. Research consistently shows that deliberate practice leads to meaningful improvement in virtually any domain. The key is focusing on quality over quantity of practice: No matter what skill you’re looking to master, it will help to identify your specific weaknesses, seek expert feedback on your performance, and continuously push yourself beyond your current abilities.

Perhaps most importantly, we should remember that excellence and enjoyment aren’t the same thing. You can benefit from hiking without being an Olympic athlete, painting without being Picasso, or playing music without being invited to play at Carnegie Hall. Instead of chasing magic numbers, we might find more satisfaction—and better results—by embracing the messy, individual, and deeply human process of gradual improvement.