This thread has way too much math and science and not nearly enough
baseless conjecture about "Aliens" from half-drunk rednecks like me.
I even imagine ET visitation being like a redneck taking a joyride in some
unlicensed automobile and driving way too fast. What if what some people
see are just teenage "Aliens" out for a joyride--drinking and drugging illicitly?
What if they get in trouble when they pass back through whatever inter-dimensional
anomaly they used to "appear" here?
"yYou're grounded to the Andromeda Galaxy for the next 7 Millennia."