At Psychology Today Blogs, Guy P. Harrison explores the continued fascination with unidentified flying objects and the desire of many to turn them into alien space craft. A nugget:
Unidentified means unidentified. Many people have seen weird things in the sky that they cannot make sense of. But this is to be expected considering how crowded it can be up there with clouds, aircraft, balloons, flares, satellites, meteors, planets, stars. The first mistake with these a number of these sightings occurs when people can’t resist jumping to extraordinary and unwarranted explanations. I can’t tell what that is—so it must be an extraterrestrial spaceship. This is a fundamental failure of critical thinking that is easily prevented by remembering that ignorance is not evidence.
My own theory is that any civilization smart enough to circumvent the laws of physics and achieve interstellar flight is also smart enough to avoid our kind like the plague we are.
*With apologies to Pink Floyd.