> theyre actually cast cement blocks basically this. people have uncovered that they used synthetic stone to make these limestone blocks. which is why there is a difference between the blocks in giza versus rocks that are not synthetic in taste (yes, you can taste the difference because one is salty and the other isn't). that said, what is impressive is why we haven't started using more synthetic rock building in our modern architecture and why it isn't more commonly known that they didn't stone mason these rocks, but rather cast them right in the place where they wanted them to be placed.
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