Yes, of course I am advancing hypotheses, Shimrod. That's because I am keenly aware that I don't already know everything! ;-)

It's a pity more people weren't like that. Most people act like they already have all the answers they will ever need about anything they've got an opinion on. Have you ever noticed that? That's why they don't bother using words like "may", "might", and "could" when they pontificate on about unproven matters on which they have formed a strong opinion.

I am interested in the subject of alien vehicles precisely because I know that I don't know much about it yet, despite having had a couple of very interesting sightings of my own...nor do most people know much about it. But that doesn't stop them being arrogant enough to not bother with using words like "may", "might", or "could", does it?

Oh no, they are dead sure about the rightness of their unfounded opinions...which are generally based on nothing much more than a basketfull of unproven assumptions and similarly unfounded opinions that they already picked up from someone very similar to themselves. No personal experience whatsoever. Just absolute certainty of what they think must be so because that's what they think! And why do they think it? For the same reason that Polly says 50 times a day, "Polly want a cracker!" They heard someone else say it a bunch of times, and they learned to repeat it.

Polly never bothers to wonder about that, and neither does the parrot-like average person who is devoid of any actual experience of his own that would have any bearing on the matter...but still quite sure regardless of what must be true.