Coyle describes that deep practice can apply to everyone. Furthermore, he uses many extreme examples to demonstrate that deep practice can be used in various ways. For example, in "The Sweet Spot," Coyle gives voice to examples including a Brazilian boy trying to learn a difficult soccer move, a Texan girl trying to sing a song better, and the pilot training simulator that Edwin Link he invented to help the pilots of the plane. The US Air Force learns to fly. Furthermore, thorough practice increases problem-solving skills and makes a person think smarter. By focusing on what the person is not doing well, he or she solves the problem, trying to solve the problem and solving the problem makes it a skill. Therefore, struggle is an integral part of deep practice. Deep practice is an unexpected way of learning because people learn from their mistakes. Mistakes are the opposite of how they are normally thought of. Mistakes are good and actually lead to a better outcome. Talent is an achievement that can be created from deep within