* The skeptics of advanced ancient technology here don't seem to have looked over the site very closely:
http://www.gizapower.com/pma/index.htm and
http://www.gizapower.com/Advanced/Advan ... ining.html - Dunn is a machinist and he checked the smoothness of flat and rounded surfaces on the Egyptian sites and found them to be extremely accurate. Note below that these are mostly granite objects, very hard rock. He checked with granite manufacturers afterward and found that some of the Egyptian objects, like the large granite boxes below, could not be made even today. The site mentions that the tunnels in which the boxes are found have no room for hundreds of people to pull them into position with ropes etc.
* Velikovsky was more open to advanced ancient technology than you guys are. He thought the Nefilim who came to Earth and married daughters of men might have come from Mars via spacecraft. They could have been cousins of humans in the first place whose ancestors had gone to Mars from Earth.
* Your rationalizing can't explain the following.
Exhibit 15. Front view of Exhibit 9. Material ~ Aswan pink granite. Location ~ South corner and 100 yards east of Khafre’s pyramid.
Exhibit 23. Core drilled hole. Material ~ Aswan pink granite. Location ~ West lintel in South East hall inside the Valley Temple.
Exhibit 27. Inspecting the inside of another box at the Serapeum using precision toolmakers instruments. Material ~ Aswan pink granite. Location ~ Rock tunnels of the Serapeum at Saqqarra.
Exhibit 26. Box carved from solid piece 7-1/2 ft. wide 9 ft. high 13-½ ft. long . Material ~ Aswan pink granite. Location ~ Rock tunnels of the Serapeum at Saqqarra.
Exhibit 25. Saw marks. Material ~ Aswan pink granite. Location ~ Abu Rawash.