There's no need to be disrespectful and attempt to portray my position as if it is something ridiculous and requires belief in space aliens. As I said, I think what was built was very sophisticated, and I don't find the claim that it was built just by "banging rocks together" to be satisfactory especially since no one has been able to reproduce an equivalent structure using this method.
> I never called them primitive.
How would you interpret and contextualize your remark "your only tools were other rocks"? To me, it seems like you're trying to insinuate and put in the mind of the reader exactly that you believe that they were primitive and lacked sophisticated tools.
> archaeologists have shown that rocks can be shaped accurately in the manner of those walls by just banging them together.
I have not seen such a conclusive proof. I'd like to see this proven by building an equivalent structure to Sacsayhuaman, at least perhaps even a corner. That alone would be impressive.