This is an excellent example of what you can do with a little ingenuity and patience. Given that hours would have been relatively abundant when things like Stonehenge and the great pyramids were built, and given that ingenious people would have dedicated their energies to these kinds of practical problems instead of video games, it’s not unlikely that they were at least as competent as he is at moving heavy things.
I found it pretty amazing that a member of his family allowed him to move their pole barn 300 feet just to show that it could be done. I’m nervous enough about the idea of professionals jacking up our house for foundation and basement work; I can’t see myself letting someone slowly spin a working building around just to prove it possible :-). I wish we’d learned more about how he got the cross pieces on the arches up. Standing the beams up was impressive, but the cross pieces seem a much trickier business. Still, it’s all quite something to watch.