What is "common sense"?
Well, the visitation/abduction scenario challenges our sense of reality because:
(1) Travelling to another star requires an energy investment greater than the sum GNP of your entire planet (maybe even your star), so in terms of cost-to-benefit analysis it just doesn't make any sense.
First who says they are coming from another star? That's making assumptions based on little evidence. Maybe they are, and maybe they aren't. We don't even know what these being are. They tell people they are from another star, but then they tell people a lot of things. Maybe they think that's funny.
But I have said the same thing. The whole project uses an awful lot of resources, based on our experience. So it would seem that something else is going on. Either they can get here quite easily, using technology we have no clue about, or they aren't
traveling in a linear fashion.
And this is still all using the concepts and technology we know about. That was my point in my earlier post. We can't think that way. When we only had steam engines, would we think UFOs were steam powered?
Just from observations of their craft, they possess technology we can't comprehend. If they can go from
total stillness to blindingly fast speed at the blink of an eye, then they are clearly manipulating their mass, and/or space-time. We don't see any detectable propulsion system, except for an occasional buzzing sound.
So until we can grasp how they work, we can't even make conjecture on where they are from or how they get here.
(2) Time travel is a fantasy invention of science fiction used as a device to help facilitate the telling of tales. Even Stephen Hawking now regards multiple dimensions of time-space as unmerited. But even assuming a multi-dimensional reality truly existed and time travel were not purely fantastical, you would be travelling into a different universe with a different future and past (not your own).
That's still based on our own knowledge, which as I alluded to, probably isn't very much at all. If we can't get our aircraft to perform like observed UFOs, how can we pretend to know anything about any of these esoteric subjects. We are practically in the stone age compared to what people observe UFOs to do. So we do not have enough understanding of reality to say that time travel is impossible. Only that we don't know how to do it.
I think juggling is impossible... at least I can't do it!
That's the same logic.
We don't know about something until we discover how it works. We just haven't done that yet. Flying was impossible until someone figured out to make heavier than air craft.. and that was not all that long ago. We still used controlled explosions for most of our propulsion. So we discovered fire, and haven't progressed all that much since then!
These beings
clearly are able to manipulate space-time, and that's just from witness testimony.
(3) Lifeforms that evolved on completely different worlds, under completely different chemical environments and with completely different happenstance, would not be capable of the genetic interaction of hybridization.
Once again, that's based on our current knowledge. It's also making assumptions. We haven't been to other inhabitable words, right? So we can't make any assumptions about what life is like in other parts of the Universe. We do know what life is like here though, and there is a LOT of it. And we know about uninhabitable planets in our own solar system. But as far as we know, conditions might have to be close to those on Earth, and that might be a fairly common thing.
These beings seem to have evolved from a different path... maybe even from something like our insects.
(4) Many of the eyewitness accounts are more easily explanable in terms of psychological processes, collective unconscious mythmaking, delusion, lying and campfire storytelling...
According to who? The fact that people don't say that these beings talked with a funny accent and gave some sci-fi names and stuff shows that this isn't your usual confabulation.
So those things do not explain any of the eye witness accounts. The easiest explanation is they are reporting actual events.
There have been a lot of studies done, and phycological tests done on these people. There is an excelent report in Budd Hopkins book
Intruders from a phycologist, Dr. Elizabeth Slater, who he had do a full battery of psychological tests on the subjects. She didn't know these people were abduction experiencers. She found "no major mental disorders, none were paranoid, schizophrenic, or otherwise emotionally crippled"
In her report she stated:
The first and most critical question is whether our subjects' reported experiences could be accounted for strictly upon the basis of psychopathology, i.e. mental disorder. The answer is a firm no. In broad terms, if the reported abductions were confabulated fantasy productions, based on what we know about psychological disorders, they could only come from pathological liars, paranoid schizophrenics and severely disturbed and extraordinary rare hysteroid characters subject to fugue states and/or multiple personality shifts...
She went on to say that none of the subjects fell into that category.
Also Dr. John Mack has stated the same thing. So here are trained professionals in the mental health field stating on record that there incidents are not "collective unconscious mythmaking". Also we have no evidence that such a collective unconscious even exists. I believe that some of the things we call "myths" are based more in reality than people want to believe. But it gets back to the short comings of the current state of our science.
Many abduction experiences do produce physical trace evidence, and "collective unconscious mythmaking" can't cause that.
(5) None of the eyewitness accounts -- that I'm aware of -- provide any tantilizing bits of information that could truly be said to be indicative of an encounter with something beyond human experience. All of the information is consistent with human imaginary experience and bad science fiction.
I find that statement absurd at best. People have experienced all manner of things that have nothing to do with human experience. These encounters do not match sci-fi, and in fact a lot of what is in the culture now as sci-fi has come from the genuine UFO experience, and not the other way around. VERY strange things happen to people, and these strange things happen to multiple people. You just cant make up stuff like that and expect that everyone is going to do the same.
You also have young children who report these things, and they haven't been indoctrinated into the sci-fi culture yet. And you have people from every walk of life and from all over the world. Budd Hopkins points out that some of the people he has worked with have had PhD's, have been doctors, lawyers, and such.
Now the people who say they met space brothers from Venus.. well that's a different matter. That's the kind of stuff you get from people making things up.
There are more.
This does not negate the possibility that the phenomena are real. It just means that the burden of proof is absolutely enormous.
I'm wondering how much of this subject have you actually studied? It sounds like you sat around and was just thinking about this with no research. This is common for skeptics. They are often intelligent people, but they put no time into the subject and just use what they already know. If it seems implausible based on their own opinions, then it has to be implausible. Why take the time to study something you already made your mind up about?
The burden of proof is really on the person who claims that thousands of people are suffering from some kind of "collective unconscious mythmaking." The actual mental health experts who have worked with experiences do not agree with you.