I asked Grok (AI) to gather up all theories....explaining why aliens 'stay' on Earth:
Grok says: The most likely explanation—if we hypothetically assume advanced extraterrestrials have secretly established long-term bases or stations around Earth (orbital, lunar, underwater, underground, etc.)....is scientific observation and non-interfering study of our planet, its biosphere, and our emerging technological civilization. This aligns closely with the well-known zoo hypothesis (also called the "quarantine" or "cosmic zoo" idea in discussions of the Fermi paradox).
I gave it thought and would add....if you were 500 to 10,000 years more advanced....you might live on a pretty low-stress landscape and be mighty bored. A year on Earth....might be rewarding.
Yeah, there might be 300,000 aliens as 'guests' on Earth....treating themselves to McDonalds, or Jim Beam whiskey. There might be 5,000 aliens just here to observe the Atlanta Braves baseball team. There could be 3,000 aliens tangled up in Civil War re-enactments. And I would venture to guess that 30,000 aliens are visiting to consume Trump-reality.
This being a good thing or bad thing? I don't think this can be argued on either point. It's like a circus has arrived at the end of town, and everyone is focused on crazy stuff that might occur.
