I've been thinking about what it might take for me to take these types of sightings seriously.
The mere fact that they appear to be attested by multiple trained observers, with radar and photographic corroboration, makes me take them seriously. The fact that similar events reportedly have happened thousands of miles and years apart, make me even more inclined to take them seriously.
First, let me preface by saying that I think it is extremely probable there is other life in the universe. We arose through natural processes, so there's no reason to assume that it can't happen elsewhere. But finding a life form capable of the technology to travel interstellar distances that exists in the same timeframe as us is like finding a needle in a haystack. I mean, we can't even travel to the next planet yet. We have to rely on someone finding us. As such, I find it unlikely that we are being visited by extraterrestrial beings.
Yes, I find that line of argument to be persuasive. My idea is that life is so incredibly complex (just look at any advanced cell and molecular biology text) that it is probably extremely fortuitous that it took off at all. Which suggests (to me, anyway) that life might be spread very thinly among the stars. Of course if we define life functionally (as I'm inclined to do) then there might be many ways to achieve similar functions (multiple realizability), so the probability might go up again as we admit the possibility of lifeforms very different biochemically from Earth life.
Then look at the history of life on Earth. The appearance of eukaryotes, the rise of multicellular organisms, the division between plants and animals. Life has been present on Earth for (it seems, we really don't know) for the better part of 4 billion years. The Cambrian explosion and the sudden as-yet-unexplained appearance of almost all animal body plans (arthropods, chordates, mollusks and a whole assortment of very different worms) about 500-600 million years ago. And human beings of whatever sort for maybe 1 million years. And modern technological civilization for less than 300 years. Once again, what appears to be a whole series of what might have been fortuitous events.
In other words, life might be spread very thinly through the stars. Perhaps >90% of the rare planets with life play host only to things analogous to Earth bacteria. And hardly any of the even more rare planets with more complex organisms will host intelligent life. And only a tiny number of those will host technologically advanced space-faring civilizations.
That's why I'm inclined to agree with you. But I also have to say that it's not something that I really know. It's just a speculative inference based on a tiny sample size of one.
There are other possibilities. Perhaps the universe is swarming with Von Neumann probes
en.wikipedia.org
gmilam said:
So, short of me being the person who actually saw a ship land, It would probably take some sort of physical evidence for me to entertain the idea that we have been visited.
That's reasonable I guess.
The thing is, I don't want to let my own beliefs about how unlikely space-alien visitations might be (something I have no way of really knowing) bias me to the point where I just summarily dismiss the better attested and corroborated sighting reports just because I make the mistake of leaping to the conclusion that they can only have one explanation that I happen to not believe in. We have no real reason to assume that the UAP sightings must be alien spacecraft, apart from our own culture being a technological machine civilization interested in space. Conceivably whatever the UAPs turn out to be (assuming ex-hypothesi that they are anything extramundane) might be something quite unexpected and higherto unknown.
Some will hate me saying this, but we can't just dismiss the more problematic elements of a sighting report as presumptively false just because we don't have an explanation for it ready at hand that's consistent with our preexisting assumptions. There are times in life when we have to admit that we don't know what something is.
I see those moments potentially as occasions for learning and for growth.