When you see all that agricultural terracing, you have to ask what happened to the large population that needed it? It’s harder to explain why they felt the need to construct terraces above the snow line.
I’m curious about the people and the timeline. As I said, it sure does seem to smash any theory that man got to South America via North America a piddling ten thousand or so years ago.
Wonder if they can find any organics used in the construction, or possibly small hordes of preserved whatever they were growing? Maybe timbers or something? Something they could carbon date...
It’s pretty darn impressive!!!
Or not.
Why must you assume that the snow line then was the same as the current one?
Remember, sudden mass migrations away from certain areas of the US Southwest are still unexplained.
Without nasty "fossil" fuels and CO2 causing climate change, it is simply assumed to be "impossible."
Time to think outside the fraudulent "green" box.
Snow accumulates fresh water at high altitudes, then releases it at an opportune time (spring) in large yet tempered rates. If you can’t pump water up, nor have good low altitude sources of it, build your farm up near the snowpack and build terraces & irrigation to take advantage of timely runoff of fresh clean water. The higher the farm plot, the greater the volume and quality of water available, as mountain peaks concentrate the snow in relatively small areas.
May not have been above the Snow line back then.