except the part about the origin of life. H. Reeves writes as a scientist worthy of the name he knows and acknowledges that we do not know many things. Coppens has a tendency to expose his ideas as the likely reality of our ancestors, but it's still happening. From Rosney by cons is expressed as a scientist, and we unhesitatingly describes how life began on Earth! What aplomb ... He knows, like any professional or amateur, that the origin of life remains a mystery for now. The assumption made is an idea among many. For the record, he had published in the 70's a small book on the same theme with the same assurance he described us a different theory (totally abandoned for)! I am surprised that the editor, and the two co-authors have missed that.