I enjoy reading books by Pierre Rabhi, but I did not really hooked up with this one: the first part is written by JM Pelt and chronologically describes the birth of the universe, then the earth and animals and men. It is instructive, but not directly related to the book title. Similarly, the second part, written by Pierre Rabhi, repeats the words he often exposes his views on the current world, but do not really trying to answer the question posed in the title of book. It's a shame ... I was hoping for something more philosophical or transdisciplinary, but articulated.