Here is a brief excerpt from an article by Maria Popova and featured by her website, Brain Pickings. To read the complete article, check out dozens of others, and learn more about Maria and how you can help support her immensely valuable website, please click here.

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The question of what it takes to excel – to reach genius-level acumen at a chosen endeavor – has occupied psychologists for decades and philosophers for centuries. Groundbreaking research has pointed to "grit" as a better predictor of success than IQ, while psychologists have admonished against the dangers of slipping into autopilot in the quest for skill improvement. In recent years, one of the most persistent pop-psychology claims has been the myth of the “10,000-hour rule” – the idea that this is the amount of time one must invest in practice in order to reach meaningful success in any field. But in Focus: The Hidden Driver of Excellence (public library), celebrated psychologist and journalist Daniel Goleman, best-known for his influential 1995 book Emotional Intelligence: Why It Can Matter More Than IQ, debunks the 10,000-hour mythology to reveal the more complex truth beneath the popular rule of thumb:

“The “10,000-hour rule” – that this level of practice holds the secret to great success in any field – has become sacrosanct gospel, echoed on websites and recited as litany in high-performance workshops. The problem: it’s only half true. If you are a duffer at golf, say, and make the same mistakes every time you try a certain swing or putt, 10,000 hours of practicing that error will not improve your game. You’ll still be a duffer, albeit an older one.”

No less an expert than Anders Ericsson, the Florida State University psychologist whose research on expertise spawned the 10,000-hour rule of thumb, told me, “You don’t get benefits from mechanical repetition, but by adjusting your execution over and over to get closer to your goal.”

“You have to tweak the system by pushing,” he adds, “allowing for more errors at first as you increase your limits.”

The secret to continued improvement, it turns out, isn’t the amount of time invested but the quality of that time. It sounds simple and obvious enough, and yet so much of both our formal education and the informal ways in which we go about pursuing success in skill-based fields is built around the premise of sheer time investment. Instead, the factor Ericsson and other psychologists have identified as the main predictor of success is deliberate practice – persistent training to which you give your full concentration rather than just your time, often guided by a skilled expert, coach, or mentor. It’s a qualitative difference in how you pay attention, not a quantitative measure of clocking in the hours.

“Hours and hours of practice are necessary for great performance, but not sufficient. How experts in any domain pay attention while practicing makes a crucial difference. For instance, in his much-cited study of violinists — the one that showed the top tier had practiced more than 10,000 hours — Ericsson found the experts did so with full concentration on improving a particular aspect of their performance that a master teacher identified.”

Goleman identifies a second necessary element: a feedback loop that allows you to spot errors as they occur and correct them, much like ballet dancers use mirrors during practice.

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