Great story, but comes as no surprise: People with a "growth mindset" -- those who "believe that we can get better at almost anything, provided we invest the necessary time and energy" -- were significantly better at learning from their mistakes.
The physicist Niels Bohr once defined an expert as "a person who has made all the mistakes that can be made in a very narrow field." Bohr's quip summarizes one of the essential lessons of learning, which is that people learn how to get it right by getting it wrong again and again.
— www.wired.com