the simple fact that no tooling has ever been found to cut granite has always swayed me back to the alien side...
“the simple fact that no tooling has ever been found to cut granite has always swayed me back to the alien side...”
I accepted that, until I had seen some of the geologic evidence of how destructive, in multiple ways, the end of the ice age was. With that it may simply be the archeological evidence for pre-ice age advanced tools has yet to be found/recovered, because they are buried so deeply.