An engineering professor at ASU just signed on to formally test whether crushed silicate rock can be cast into hard stone at low temperature. This is the experiment Davidovits’ hypothesis has needed for three decades

Quick context for anyone new to this thread: Joseph Davidovits has argued for decades that many megalithic blocks weren't carved and dragged but re-agglomerated, cast in place from a silicate slurry activated with alkali chemistry. The geopolymer hypothesis. Mainstream Egyptology rejects it. The objection that gets raised every time: "show a working low-temperature protocol that produces a cast, hardened binder from raw silicate inputs."

For roughly a decade, Marcell Fóti (@FoMaHun on X) has been openly demonstrating exactly that. Crushed silicate rocks, alkali activator, low temperature, castable binder. Public videos, public method, no patents, no product. What's been missing the entire time: a formal academic replication with full characterization data.

That just changed. Prof. Narayanan Neithalath, Fulton Professor of Structural Materials at Arizona State and director of CAMMS (Carbon-Efficient Manufacturing of Sustainable Cementitious Systems), has signed on to lead a formal experimental replication and characterization of Fóti's protocol.

It's outcome-neutral. The lab publishes what the data show.

If it works, it's a real result on two fronts: a low-energy cementitious binder (modern cement is roughly 8% of global CO2), and the first peer-grade mechanism evidence that ancient builders could have done what Davidovits has been describing. If it doesn't work, the hypothesis is closed with characterized data instead of dueling YouTube videos. Either way, it's the experiment that's been missing from the record for thirty years.

PI: https://faculty.engineering.asu.edu/neithalath/
CAMMS: https://decarbonize.asu.edu/
Experimental Proposal: https://www.researchhub.com/proposal/32055

Read the methodology and decide for yourself.