If you go back and try to get an overview of the ET and UFO phenomenon, it quickly becomes a challenge to decide if you are making sense of anything. The UFO timeline basically starts with Kenneth Arnold, Roswell, and Edward ruppelT. Though there have been sightings throughout history, those are regarded as the main ones.
The ET portion is more difficult to pin down. You find statements saying Orson Welles was the first person recorded using the term. Though it doesn't really appear he is using it to make a claimextra terrestrials exist, rather more as a marketing ploy to sell his stories about life from other planets.
Most people will probably simply think of the movie ET unless you clarify that you are talking about the ET that is associated with UFOs. From there, a person might think of the generic three-foot tall green being with almond-shaped eyes and possibly antennae. It is a lot more difficult to express a standard of thought common to all people with the term "ET." At least with UFO, most people think of a shiny, metallic, disk-shaped object that probably is from another planet.
A new trend is developing that may change the course of the ET and UFO phenomenon. The possibility that Humanoid Extra Terrestrials Live Among Us (HETLAU) and that UFOs don't fly has some interesting clues that are becoming easier to see it may be true.
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