A well structured and well researched work 10 years in the making which dispels or at least questions our assumptions of the pre-civilizational past. Degrading prehistoric people as backward savages who aren't capable of any ingenuity, sophisticated culture and worldview (*coughs* Ancient Aliens) takes away the nuances of prehistoric men and just so happens to justify our own ignorance over the past, especially a specific historiography of the past. If prehistoric people are mere animalistic children with stone tools, than how did we get from them to the likes of Ancient Greece, China or Egypt ? If we dig far enough into our cultural motifs such as myths, biases, attitudes, language and even material culture, we will get a mere glimpse of the vast richness of our past.
It should be noted that history doesnt happen spontaneously within a vacuum but is interconnected with a myriad of natural and cultural factors. Investigations into the earliest "cities", pottery and farmland has shown that nuances apply with civilization as we know it today isnt as inevitable as we think but is contingent to many events that happened long ago.