Observing Brittany’s progress, we find that it’s the quality of each of these loops that helped her improve and not their sheer number. Imagine what might have happened had she attempted an endless series of repetitions with no learning from failures, no feedback, and minimal modifications. She would have invested a great deal of hard work but progressed very little. Learning on the job is not about practicing for 10,000 hours; it’s about making sure you perform each loop with high quality.
