But the clues are always marginal, implying that UFOs are most likely artifacts in our instruments or natural phenomena. To achieve scientific credibility, any finding of an unusual object must be followed by studying it or other objects of its type quantitatively through well-documented scientific procedures. Scientific evidence restricts our imagination and brings salvation from far-fetched ideas.

Fermi’s paradox is pretentious in that it assumes we humans have some sort of cosmic significance. The reality may be that we are ordinary and doomed to perish, just like the dinosaurs, consequent to some catastrophe. Why would our galactic neighbors care about how green our grass is? Given that dwarf stars like Proxima Centauri are much more abundant than the sun, most habitable planets might be covered with dark red grass, which would be as soothing to the infrared eyes of most exo-vacationers as green grass is to us. As a result, interstellar tourist agencies may find Proxima b to be a more attractive destination than Earth. We could wonder, as Enrico Fermi did, why no exo-tourists have shown up to admire us. But better yet, we could get in touch with Proxima b and entice the locals to visit and share a water-based drink with us.