[GingisK]

I saw another video that proposed that the blocks were floated into place using a lake formed around the pyramid. Sand could easily be used for that purpose.

The teeter-totter technique used for a 10 ton block would also work for a 700 ton block.

[Windflier]

I saw another video that proposed that the blocks were floated into place using a lake formed around the pyramid. Sand could easily be used for that purpose.

The teeter-totter technique used for a 10 ton block would also work for a 700 ton block.

I'm familiar with that proposal. On its face it sort of sounds logical, but no one's proved it in the real world.

First of all, the Great Pyramid is over 400 feet tall, which means you'd first have to build a circular dam at least that high to contain the entire perimeter of the site, then a ramp of less than a 10% grade to drag the stones to the top.

That alone would be a greater feat than building the pyramid itself.