Some odd things were happening at the "apparent" dawn of civilization, things which academics have never been able to explain. Mainly, because they have chosen to ignore them, but anyone familiar with the works of Graham Hancock will be aware that, at the very dawn of Egyptian civilization, that civilization rapidly achieved a technological and architectual pinnacle. From then on there was only a slow gradual decline in their ability to achieve anything near what they had previously.
The granite sarchophagus in the King's Chamber of the Great Pyramid, shows clear signs of machine-tooling. The fact is, that the Egyptians don't appear to have possessed tools of the type, and the amount of pressure (1 ton) that would be required to be applied to a diamond-tipped drill, revolving at thousands of revolutions per minute, it's just not conceivable. So, did the Egyptians possess technologies which we are not aware of? Did they inherit technological skills from their predecessors, which have since been long lost?
Diorite vessels from pre-dynastic, that's 4000 BC, show even more remarkable craftsmanship. Considering, that this stone is harder than Iron, how were those early Egyptians able to bore out slender necks into the vessels, and literally, around corners to hollow out the inside of these circular vessels? The answers to these questions may never be known, but they are important questions, if we are to ever understand the origins of Egyptian civilization and the technological capabilities they had acquired at a very early period.
