>>7261309I missed the thread OP, but that anon is right. Let’s take this example, Machu Picchu. The stones in the oldest parts of the site are irregularly shaped, and yet fit together with such precision that a human hair cannot slip through. The stones used are very smooth with little divots like the one in the OP pic. The theory I subscribe to is that some sort of cymatics was used that physically reshaped the stone and made it malleable. The divots are the only evidence of this, they’re shaped like the tail end of a superheated mold that has been poured. The stones that form the wall also feature holes on one side, and knobs on the other that “lock” them into place.
More about Machu Picchu: the older structures are the strangest part of the site. That’s because the newer structures are clearly failed attempts at copying the original design. In other words, rough and irregular stones are placed together to form a wall, but the builders have seemingly lost the ability to make the stones smooth as well as precisely fit them together. Instead, you get a shitty looking cobblestone wall with some sort of cementing paste being used to hold it all together. They don’t feature locking mechanisms, and they don’t have those divots found in the OP pic.
Even stranger though, is the fact that this same design is found all over the ancient sites of the world, and it’s always featured in the older structures. This implies exactly what OP is talking about, that some sort of building technology has been lost to time, and it was this building technology that first created most of the greatest archaeological sites that we have discovered.
