Its a possibility i admit, the next question is where and how they came about with this amazing technology then? And when will it be in public hands, because we especially need new energy sources. Desperately. Not just things that can kill and find you more efficiently. In the bigger picture of ufological history it explains little tough and just raises more questions, even if this particular thing turns out to be manmade. Or are we next going to go with the assumption that someone here invented this kind of tech in the 1940s or before and has kept it all covered up for 80+ years? Or did they perhaps get a downed craft or crafts and managed to figure it/them out at some point? Are we dealing with a so called reverse engineered alien craft copy in the case of Nimitz, perhaps?