What I find interesting about reports of alien visitors is how the aliens change over time. For example, it seems the classic saucer shaped crafts were all the rage among aliens back in the 50s, yet no one today reports them. Then there was a shift to cigar shaped ships. For a while in the 80's and 90's the V shaped crafts were in style. Today, many sightings are just fast-moving glowing balls.
So I guess alien crafts are like our cars. Different styles come in and out of fashion. Or, perhaps it's just different kinds of aliens visiting us as different times. But, if we look at sci-fi sources from the decades prior to reports, we see that saucer shaped craft were described in fiction before they started being seen by actual people. The cigar shape was prominent in some old sci-fi movies. An so on. It's just odd that the evolution of aliens ships seems to parallel what Hollywood does in the movies.
You can see a similar pattern with the aliens themselves. Little green men were popular at first. For a while, after the movie
The Blob became popular, people started seeing blobs. When Dr Who first became popular, reports of robotic aliens spiked. Perhaps one of the most publicized early incidents, aside from Roswell of course, was the Betty and Barney Hill abduction. They first described the classic big-head aliens we think of today, and it was widely reported by the media. Suddenly people started seeing big-heads everywhere. So, it seems the aliens themselves too change their look according to how the public thinks they should look. That's odd.
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