Final answer:
According to Malcolm Gladwell, mastery in any field generally requires about 10,000 hours of dedicated, intensive practice, also known as the 10,000-Hour Rule.
Step-by-step explanation:
According to Malcolm Gladwell in his book Outliers, it generally takes around 10,000 hours of heavy labor to achieve mastery in any field. This concept, sometimes referred to as the 10,000-Hour Rule, suggests that the key to achieving world-class expertise in any skill is, to a large extent, a matter of practicing the correct way for a total of around 10,000 hours. This idea has been widely popularized and often debated within both academic and public discourse.
In Gladwell's context, heavy labor does not necessarily refer to physical work; rather, it encompasses dedicated, intensive practice or work in the chosen field or discipline. Whether a person is looking to excel in a sport, a musical instrument, a profession, or any other skilled area, the emphasis is on focused and deliberate practice over an extended period of time.