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Title: Out the main road
Review: Certainly, this book is different. Unlike a large fraction of the books published about extra-terrestrial, it jumps above the Drake equation and other classic idea and bring new reflexions and concepts. Very few books does that: Inteligente life in the Universe Shlovsky and Sagan, Cosmic Connection Sagan, Extraterrestrial Asimov and After Contact from Alan Harrison. If you are already familiar with the main ideas of the field, this book will add a new dimension to your reflexion. Beyond that approach you are in the realm of astrobiology, which is really a different thing.
