Ben van Kerkwyk

So you can see they're complex, like they're curved.

Not only does the line, it's not straight, so the lines curve where they join, the face angles change.

So it changes this way, but also the face angle changes and they perfectly match.

It's mind-boggling to understand how they might have actually put those stones together.

It does lead people to the geopolymer ideas or stone softening.

My buddy Kyle, Brothers of the Serpent podcast, who travels with us, he has a great idea that it might have been a resonance thing where you're actually resonating

and grinding stones together slowly so that once you know you basically they'll match eventually if you're just like grinding there are jewelers tools like that do similar things you can cut through you know they do it on real small stones but you can cut through granite with a star shape or whatever with these jewelers tools that get to the right resonant frequency and they just sort of grind through like an ultrasonic drill or something that cuts and just vibrates its way through

If you turn it off while it's in there, it's like Excalibur, right?

It's stuck in the stone real tight.

You have to have this – but, you know, obviously you're talking some advanced technological capability to be able to vibrate a 50-ton stone to make it grind into its neighbor.

But it's about the most plausible thing I've heard because –

I can't imagine that this was done by, all right, we lift it up, we measure it, we mark the high spots, we rub it down, we put it back up.

And you're saying this for stones that are 150 tons.

It's not happening like that.

I think in the South America directory there, Jamie, there'll be some walls, some of the walls in the streets.

One of them, that's the Coricancha.

Keep going.

There's the wavy lines.

Yeah, this stuff, right?

Yeah, this stuff.