“The “visit” that UFO enthusiasts can best hope for is that someone out there has received some of the enormous transmissions humans have sent over the past one hundred years into space and sees fit to answer. Now that would be interesting.”
Waiting for extraterrestrials to notice an obviously manufactured device clinging to a comet hurtling thru space and wonder where the heck it came from...good plotline for a movie anyhow...
Actually a mechanical device clinging to an asteroid would take well over 100,000,000 million years travelling at a very rapid average speed to reach the nearest star which probably has no intelligent life even if it has orbiting planets.