All the stated potential reason in the initial post are fascinating. Now we are seeing UFOs (Or UAPs - unidentified aerial phenomenon) being aknowledged by official governments. Most of them can be identified as something known, but a few are still a mystery.
I like an article from NPR that's says in 2021, there are 143 reported UFOs that cannot be explained. These are just sightings between 2004 and 2021.
I'm neither a believer nor a denyer, but it's clear some things can be called 'weird'.
When it comes to meeting aliens face to face, science makes it hard to believe they will just show up and say hello. But maybe they are watching.
Edited: Lightsabove on 2nd Dec, 2022 - 7:56pm
Aliens see us as the fish they left at home and went out to a party, then they returned and we wrecked the tank & made a huge mess.
I think whatever contact we’ve had with aliens, as a collective they agreed the human race was to be left alone. They chose to leave our species alone until we are advanced.
Imagine our world government conducted meetings with extraterrestrial visitors. The meeting concluded and the visitors said they’d not only take our resources but our citizens. And if we didn’t agree to terms they’d just wage war and take whoever was remaining, remove the word imagine.