This is a slow news day gap filler. It has nothing directly to do with Egyptology, but it might be useful for anyone interested in prehistory, so I have slotted in a mention of this book review printed in Nature.
Robert N. Proctor reviews Origins and Revolutions: Human Identity in Earliest Prehistory by Clive Gamble. In Origins and Revolutions: Human Identity in Earliest Prehistory, Clive Gamble questions two widely accepted theories. First, the idea that a 'human revolution' took place around 50,000 years ago, with a genetic change associated with the appearance of art, music and language. And second, the notion of an economic and social revolution in the Neolithic period. Instead, Gamble envisages a long haul, with human invention growing at a steady pace.
Unfortunately, the review is not available online, but anyone interested in pursing this book will be able to find the book on Amazon UK, which not only shows a synopsis, but also allows you to view the first few pages, including the Contents list, the first six pages of Chapter 1 and the index.
Egypt has produced extensive prehistoric artefacts from the Lower Palaeolithic onwards, and there is a lot of surviving rock and cave art (for which the dates are largely speculative) although so far no human remains associated with either Lower or Middle Palaeolithic artefacts.