re: As is true of every claim about et tech on earth.
If David Adair wants us to beleive anything he says, he needs to provide even a modicum of evidence. Fanciful stories are quite interesting and in the middle ages, people would write "travelogues" about their adventures in far away lands where they swore they saw "gryffins and twice rond holyphants" (so sorry for the Middle English, Griffins and huge elephants) on little islands. Cute stories, not true then, not true here. Gotta story? Prove it!