Quote by Brien Foerster

“Why the two [gigantic obelisks left unfinished at the Aswan quarry] were never finished is unknown. It appears that the workers simply stopped and never came back. The same possibly was the case at the Serapeum at Saqqara, where most of the 100 ton boxes were never finished. If these are pre-dynastic works as expected, then the great cataclysm of 12,000 years ago could have been the culprit - massive earthquakes and possibly solar blasts devastating all life in these and other areas. There is a massive horizontal crack in the bottom of the right channel of the great obelisk that also may have been the reason [...]. On another note, the left and right channels of the great obelisk would have been too narrow for workers to be shaping them with dolerite stone pounders. A lot of force would be required to remove any material at all, and having a foot or two of clearance would result in very little if any stone removal.”

Quote by Brien Foerster