We know that is only about 2000 years old
But the ruins of puma-punko are over 10,000 years old.
we could not move this stone today:
This is a common misconception people have as a result of inflammatory, and bombastic "documentary" reporting that they are subjected to throughout life...
There is nothing special about the old monolithic blocks. They are not cut to laser-like precision, and they can be moved with primitive tools. Just not fast!
I recommend you watch 2 documentaries. One about the Easter Island statues on NOVA and the incredible revelation that it is possible they were "walked" from he quarry to the beach.
The other is also a NOVA about the Antikythera mechanism, a mechanical computer that is over 2000 years old. It turns out that it was not impossible for them to make them, they just needed a fine jeweler and a mathematician. Both available 2000 years ago.
These ancient marvels were not impossible to make, just very difficult and time consuming. It's amazing what the human mind can do where there are no tablets and TV's to keep it occupied with nonsense :-)
And I suggest you re-watch that same NOVA show about the statues on Easter Island- it was filmed BEFORE they realized that the statues are not just the heads, but are full-body statues buried up to the neck.
And the large stones on puma-punku could not be moved with a few dozen cranes. And they are dated to be over 10,000 years old.
You can choose to believe that they were able to cut and move them by banging it with rocks if you like.
We know that is only about 2000 years old
But the ruins of puma-punko are over 10,000 years old.
we could not move this stone today: