Prof. Joseph DAVIDOVITS presents, in this 1h20 conference, his famous theory on how the Egyptians pyramids were built with re-agglomerated limestone.
This conference was recorded in 2008 representing the knowledge of that time. Since then, recent scientific studies using very powerful and modern equipment found the ultimate evidence that the pyramids stones are synthetic. Read more at https://www.geopolymer.org/pyramids
Believing in the artificial stone theory, or countering it, is simply no longer relevant. It has become a truth, a fact.