Lots of evidence that you conveniently can assert but not name. It doesn't matter whether we have the "technology," Tunnels can be dug with pick and shovel, as many ancient civilizations have shown. Your problem is to substantiate the allegation that "tunnels" exist. Just because you have pencil and paper doesn't mean you have written the Great American Novel.
Lots of evidence that you conveniently can assert but not name. It doesn't matter whether we have the "technology," Tunnels can be dug with pick and shovel, as many ancient civilizations have shown. Your problem is to substantiate the allegation that "tunnels" exist. Just because you have pencil and paper doesn't mean you have written the Great American Novel.