In this episode of Mind Matters, Marcell Foti shares his groundbreaking Natron Theory, challenging conventional explanations for the construction of ancient megalithic structures. Foti, an IT professional turned independent researcher, proposes that ancient civilizations used a chemical process involving natron—a carbonate mineral used in ancient Egypt for mummification and as a detergent—to etch and dissolve granite into a moldable "waterglass" slurry, which could then be cast into precise stone shapes. Demonstrating with small-scale experiments, he explains how this method accounts for the seamless, complex features of structures like those in Peru and Egypt, offering a compelling alternative to traditional theories of chiseling. Follow Marcel’s ongoing experiments and insights on Twitter and check out his book, The Natron Theory, for a deeper dive into this revolutionary idea.