yeah, unfortunately, nah

the witness marks (signs of the tools being used) resemble machine tools, especially varying sizes of disc saws. there is overcuts, on many of these that appear to have involved disks of several metres diameter based on the curvature of the witness marks.

the lifting of 100+ ton slabs of stone also doesn't have any explanation we can see, again, we don't have the technology to perform such a lift, although it is possible to lift lighter large rocks in the 10-50 ton bracket, it's just way too big to be practical, and how they transported it? well, presumably by boat but that's not the hard part, the hard part is a) lifting it and b) a boat that can displace that much weight

anyway, yeah, i do think that there was some stuff involving geopolymers, but the witness marks show machine tooling, especially on the non-cosmetic parts, of the sarcophagi and others, on the solid calcite blocks at... i forget the name of the place, i was just watching a documentary showing it. it all definitely is natural stone that has been machine cut. same with the vases, but the vases were carved with CNC style robots, by their geometry, and the precision and thickness of the walls of the vases would be impossible to replicate with even the most expensive modern machine, not to mention the ridiculous precision of the grinding.

of course there is probably plenty more mysterious signs of high tech yet to be found but there is no doubt, in my mind, that the dynastic egyptians inherited a lot of what we see in egypt now today, because what was made after those early artifacts, was not made with machine tools, but likely with copper and steel tools and maybe some of this natron stuff.

you just can't fake machining tool marks. also, the sarcophagi, the guy who wrote TAOY suspects that these were sensory deprivation tanks, of some sort, since after all no bodies were found in them.