It’s undeniable that Ericsson identified an important mechanism behind success: feedback. Without feedback, “it’s very hard to imagine how people would get better,” he says. Feedback is rare. Life is not like chess. Most real-world situations don’t yield immediate returns. We’re free to make the same mistakes again and again. Take medicine, where Ericsson is trying to apply his insights. Many doctors will diagnose a patient and then not see that patient again. They’ll never know if they were right. “In those environments,” he says, “would you be able to learn?”
See also “Practice only makes perfect if you’re paying attention” and “Journey out of error“.