He talks about that the greatest fighters pick their battles very well, and they often get submitted in the gym because they intentionally put themselves in handicapped positions so that they can learn how to get out (and sometimes that doesn't work out, of course). So life situations where stakes are not high should be used to run high-risk experiments so that we can learn from them. He takes about risk taking a lot, and how confidence building is important for high performers. First, you learn how to recover from bad situations. You train this a lot. Then you need to learn and experience that even if you make a mistake you're good enough to recover from it. If you know that you can recover from your mistakes you're suddenly free to take large risks. As an extension: if you're new to a field and you're looking to acquire skills then learn how to recover from bad situations first, so that you can then keep exploring without the fear of getting into bad situations.