I copied this from my Instagram post so that you could easily click on the links to watch or read.
I want to add a layer to the mystery of how these pre-Incan features in Peru were built. I describe it as THE MASON'S TENDENCY. A mason's arms, hands, chisels and hammers are designed to work in certain ways. So a mason will TEND to work in those certain ways. We TEND towards shaping dimensional shapes NOT multi-dimensional sided, convex-faced pieces. (I'm not even a fan of the aesthetics of these pre-Incan ruins. Other than maybe the anti-seismic aspect I would never build this way IF I could.)
A MASON also generally TENDS towards efficiency (without compromising, I hope). So, TOOLING stone into these complex shapes is NOT efficient, BUT if the stone was heated, made malleable and you had different tools then a MASON might TEND towards creating the soft, multi-dimensional sided, convex-faced characteristics of these stones.
This could be done, but it would be extremely time-consuming and nearly impossible with the very large stones unless you had advanced lifting technology. But, I don’t see the tool marks that support this.
I'm a believer in the theory that the stone was heated which made it malleable and then these convex-faced and multi-sided aspects could be "shaped" with different tools. I also believe some sort of advanced lifting technology that bypassed the laws of gravity was used.
