Oh, I forgot about that continent one. Great stuff. And thanks, we will watch "How to Grow a Planet" for sure.
And I almost forgot about this:
When Did Humans Come to the Americas? | Science | Smithsonian
That is how neighbours used to build entire barns in a single day. That has been done at least once. And, as a matter of fact, that is likely how monkeys got to South America from Africa as well.
True enough, but as I said, once someone can figure out how something was done, I am sure we could replicate the deed. And there is the matter of priorities. Is it THAT important that we figure it out as soon as possible?
Anyways, I am not sure if it is still on, but there was a tv show where a group of people (anthropologists and engineers or whatever) were taking on tasks of figuring out how to build working models of things like trebuchets and other structures.
That would be interesting. There are lots of postulations around and some frauds such as The Calaveras Skull issue. I never did carry on in the field of anthropology after I got my BSc but I read stuff a lot. The field produces huge amounts of conjectures about a huge variety of topics. Movement of verification and the like is therefore quite slow as is actual discovery. It is a job of finding evidence enough to form a decent hypothesis to begin with. Then the search for more evidence goes from there.
This may be interesting to some folks:
Archaeology Magazine - Hoaxes, Fakes, and Strange Sites - Archaeology Magazine Archive
Well, I can believe 16,000 years ago as the first "ships" were built around 8000 BCE, but 60,000 is pushing it especially for long voyages extending beyond a few days. Crossing a lake or poling across a river is one thing, ocean travel quite another.