> This book changed my life. Ditto! I thought science was... all about the end state? You mix these two chemicals together, you get these products. You solve a

> This book changed my life. Ditto! I thought science was... all about the end state? You mix these two chemicals together, you get these products. You solve a math problem, you get an answer. The idea that the interesting bit was the process, not the outcome, was a whole new way of looking at the world. It was my introduction to the idea that you could iterate - feed the outputs back in to the function as inputs - and not just get feedback squeal. How many genuine paradigm shifts do you get in a lifetime? Right book, right age. I bet most of the people leaving comments like this are circa 50 now. I never became competent at mathematics though :)