[Waco]

My 2¢ theory on the UFO’S is; just as the styeam engine were once in our ‘future’, if there is time travel, it may be 300 yrs. or 50000 yrs in our future, so these things or some of them might be us comming back for who knows what reason. Tinfoil that.

[MahatmaGandu]

so these things or some of them might be us comming back for who knows what reason.

Anthropologists.

[BenLurkin]

might be us comming back for who knows what reason

They're up to no good -- unless basic human nature somehow changes. And there's no reason to suppose it ever will.