If this theory was already mentioned in this thread, I apologize outright.
I propose that the knowledge of how to make structures at Puma Punku were passed on by visitors to this region. Visitors from the outside realm, from
across the great divide. I propose that a group of ancient Roman engineers (recent graduates), left Rome, searching for new challenges. Since it was
so tough to break into the field, with all the politics, and other obstacles on that economy, they set out across the ocean to build a new utopia.
They landed in what is now known as South America, and descended upon the people from over a mountain top. The indigenous people encountered the
visitors, claiming they descended from the sky. The Roman Engineers, being intelligent and welcoming their new found celebrity, lied, and said, "Yes!
We are from the sky, and bring you knowledge of stone masonry. We will guide you to building a grand city of stone....."
And, so the work began. The Roman Engineers kept all this knowledge to themselves on how the mechanics were done, in their own private library. Then,
one of the indigenous people discovered their lies, and broadcast a this to a drunken and angry mob, which stormed the building, burned down the
library, and killed the men.
In the morning after, while nursing their hangovers, nobody could remember the activities of the night before, and when they found the burned down
building and dead men, they all fell to their knees exclaiming that God must have smote them, and their dark ages began, and their society fell into
So, is this more probable a scenario than "Aliens did it". It has just the same amount of evidence to prove it happened, and is more likely to
actually have happened, since all aspects of this theory are 100% plausible, with no extraterrestrial technology (or any technology that did not
exists on the planet at the time).
edit on 31-12-2012 by Krakatoa because: Replaced delivered with discovered, frigging auto-correct....