"...at just after the 20:20 min mark...at just after the 11 min mark..."
Crazy seam and common hockey stick corner pieces. We've probably seen most of all that stuff from around the world by now. The level of perspective the internet affords us today on these subjects is massive.
"we know that they didn't geopolymer the granite...the fit tells us something. "
I'm starting to understand that the term geopolymer can be a real red herring. I am pretty interested in some of the findings that camp has demonstrated. It doesn't mean I'm going to build a glass case and velvet pillow for a concrete truck, but I do believe the (Microspectrophotometry, microspectometry, microspectroscopy, which ever one...) is identifying things about comparisons of natural rock and 'affected' 'manipulated' 'transformed' samples of the megalithic building blocks. And that distinction escaping the close inspection of any geologists, makes their contributions absolutely critical in the pursuit of this question.
They're onto something there. I just don't think its going to reveal anything having to do with the practical application of a concrete type process when it comes to the actual fabrication technology in antiquity.
What ever they did, it had some kind of material science help IMO. And from there, I invoke 'magic' as a place holder, and the thread dies. lol.