Based on the findings of Ericsson and colleagues, how many hours of deliberate practice does it take to become an expert in any field?

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Ericsson and colleagues' research popularized the idea that it takes about 10,000 hours of deliberate practice to achieve expertise in a field. This concept has been widely discussed and debated in the context of skill acquisition and performance excellence.

Based on the Findings of Ericsson and Colleagues, How Many