I’ve seen that video. It’s a very cool technique, but in the case of true megalith building, the blocks often measure in the tens (even hundreds) of tons — and they’re stacked up layer by layer, to great heights.
For instance, the blocks within the so-called ‘relieving chambers’ of the Great Pyramid are upwards of 70 tons apiece. Somehow, these gigantic blocks were lifted 150 feet above the ground, over the partially completed structure, then set into place - AND in multiple layers. I fail to see how the technique shown in the video could possibly be employed to accomplish that feat.
Think of the number of bodies that would be required to heft such a block. Where would they all stand, atop that narrowing structure? Let’s also not forget that every block in the Great Pyramid was quarried at Aswan, which is 500 miles away, then somehow moved to Giza without the benefit of the wheel.
Unbelievable.
Heck - how would we ourselves accomplish those things today? Quite frankly, we don’t yet possess technology adequate to the task, and neither did the ancient Egyptians. We know this because we have their tools and their writings, neither of which provide any rational explanation for how those monuments were built.
Clearly this is a case of mis-attribution. The ancient Egyptians didn’t build the megalithic structures in their land. They found them there in deep antiquity and simply adopted them. As a matter of fact, when the Greek philosopher Solon (ancestor of Plato) asked the Egyptian priests how those structures were created, they told him, “They were built by the gods.”
The teeter-totter technique used for a 10 ton block would also work for a 700 ton block.
A crane. Take a look at the Newport News shipyard.