[dcx]

Thanks for the recommendations, I've added these to my book list! In exchange, have you seen this [1] report about excellence in competitive swimmers? The lifetime of a swimmer is short and outcomes vary wildly, from local swim meets all the way to the Olympics. It's a great case study on the differences at each level. There should be copies on sci-hub or other online summaries.

I also liked Mastery by George Leonard [2] - it's a little booklet about mastery with the same kinds of generalisable takeaways, drawing on his experience as an Aikido practitioner.

[1] https://www.jstor.org/stable/202063?seq=1#page_scan_tab_cont...

[2] https://www.goodreads.com/book/show/81940.Mastery