This is not an autobiography. Rather, it is the author's reflection on the world as seen through his own experience, full of questions, as is to be expected. Perhaps the most serious question arises from a terrifying doubt, that our species is not really ready to solve the problems we face. We have a limited capacity to think on a large scale in space or time and we are less than angelic in our relations with others. The naturalist Jaume Terradas, one of the pioneers of ecology in Spain, invites us, from  his deep knowledge  and his experience of life, to think radically about our collective future, with doubt and lucid scepticism. His reflection takes into account the current outlook on the environment, economic trends and the use of natural resources eroding our local and global surroundings.