Final answer:
Dedicated practice is necessary to become an expert, with thousands of hours of focused, deliberate practice generally required.
Step-by-step explanation:
Experts gain their expertise through dedicated practice. The amount of practice required to become an expert varies depending on the subject and individual. However, studies have shown that consistent, deliberate practice is key to developing expertise. For example, reading complicated passages multiple times, analyzing problems, and engaging in problem-solving activities all contribute to improving skills and knowledge. While there is no specific number of hours or repetitions that guarantees expertise, it is generally accepted that it takes thousands of hours of focused, deliberate practice to become an expert in a particular field.