Unfortunately the book does not serve very well to evangelise the idea. It starts with the calculus of variations and then goes on to what I would see as the most difficult examples ,for instance quantum theory and thermodynamics, with the less mathematical chapters on biology and economics at the end. I think it would be better if it started with some simple 'toy' problems to sell the idea to the reader. As it is, I feel that it is difficult for the reader to evaluate how useful the method is likely to be without investing a lot of time in the mathematics - which I haven't done. But it gives some impressive results and I think its entirely possible that in the future this could be an important tool for scientific calculation."; include "amazinf.php"; ?>