Once upon a time I had a whole conversation with a guy about whether the pyramids were made by aliens. He had an issue with the size of the blocks, so I explained how it was likely done-
- Local quarry chips the blocks out of the rock, wedging them to fall directly onto rollers (logs).
- Workers move rollers from the back of the block to the front while oxen pull the block itself slowly to the pyramid.
- Block is slowly driven up a very long, gradual ramp to the work site, where it is wedged into place.
His gotcha response - where did they get the rope? So I had to explain that ropes have existed much longer than nylon.