I suppose it’s possible. Although my first reaction was to snort and mutter to myself, “Whatever . . .,” I suppose it IS possible.
While I was looking up some family history information online about immigrant ships’ passenger lists, I stumbled upon an intriguing site:
“UFO-Roots” for “those whose ancestors arrived from outer space, to make connections with others sharing this problem, discuss their ancestry, and provide advice on possible avenues for further research.”
So while some people are bragging that their ancestors came to America on Erik the Red’s Viking ship or the Pinta or the Santa Maria or the Mayflower—and I’m checking passenger lists on the Norwegian immigrant ships Bark Nornen and Argonaut looking for my Norwegian ancestors, a few other earthlings may be looking elsewhere. Instead of trying to figure out if their ancestors came from the Romedal or the Stange municipality in Norway, they might be weighing the likelihood of coming from the Andromeda Galaxy as opposed to the more local Milky Way.
As Agent K said in Men in Black, “1500 years ago, everybody knew that the Earth was the center of the universe. 500 years ago, everybody knew that the Earth was flat. And 15 minutes ago, you knew that people were alone on this planet. Imagine what you'll know tomorrow.”
It was an "AHA!" moment, explaining a few people who have mystified me over the years. It made perfect sense that some of their ideas and behavior could be traced back to the landing of a dome-shaped UFO in Duncan, British Columbia, rather than a ship pulling into Ellis Island, New York. Or it might explain the "new neighbors" who, by eerie coincidence, showed up at the church pot luck with an odd-looking casserole the day after the crop circles appeared in the Bjornberg's barley field.
Or their residency on earth could be as simple as Captain Kirk on the Star Ship Enterprise reminding his crew after landing the Klingon bird of prey in Golden Gate Park, “Everybody remember where we parked!” If you forget where you parked your UFO, it’s tough to get home again, no matter where home may be.
"They" might be living among us, researching their roots on the Internet.
It would explain a lot.