Yes and no. You could summarize 'The Wealth of Nations' the same way and it would also sound pretty basic and not worth the 800+ page read. I agree in general that 'Thinking in Bets' is conceptually thin, in the sense that there's a high text-to-ideas ratio, but there's some value in reading all of that. Duke does a good job of describing her own thoughts and experiences, in a way that makes you want to actually apply those ideas in your own life (rather than just read about them). A better book on the topic is 'Fooled by Randomness.' It's much more conceptually dense and covers a lot of the same ideas.