I heard about it through Tim Ferriss's podcast, where Tim interviewed Josh about his experiences in the worlds of chess and Tai Chi. The chess side was somewhat familiar to me, as I took some chess lessons growing up but never got into it too seriously. The Tai Chi stuff was all new, but I did have some familiarity with the meditative aspects.
I was very impressed by Josh's clarity of writing and how he was able to distill his experiences into very useful, concrete lessons and techniques, all the while telling a story filled with graphic images and gripping plot lines. It was a neat mix between stories of his own life and deep philosophical musings. The book touched on so many interrelated subjects: meditation, exercise, interval training, chess training, Tai Chi principles, psychology, cognitive biases, and strategy of war, among others.
I took a ton of notes (below) and aim to try out many of his ideas, like journaling and paying attention to what sparks creativity in me and finding ways to trigger that myself. In addition, I want to develop a similar focus on quality as he discusses it.
The way Josh goes from field to field and becomes a world-class expert and aims to actually push each art forward resonated a lot with me, as I too find myself having many interests and wanting to master them. However, Josh has been able to go extremely deep into a couple fields, whereas I find myself having gone only somewhat deep (like to the level of basic competency) in a whole bunch of fields (jack of all trades, master of none). It's time for me to work on mastery instead.
In some ways I pride myself on my ability to learn the basics of many disparate things very quickly and adapt, but in other ways I feel like a disappointment as I haven't gone so deep into any one field. Some of the fields I'm into for work, like computers, finance, and entrepreneurship, I've excelled at but certainly haven't become "world class," and I can say the same thing about my hobbies, like magic (attained above average competency but nothing extraordinary).
I think that a big challenge for me in implementing Josh's suggestions for how to go deep will be identifying which are the exact fields/hobbies/interests to go deep into. Josh seems so much more in tune with his inner truth and calling, and that's something I want to find for myself as well in order to give me the clarity and motivation necessary to really delve deep into one thing.