I had a funny picture recently of a future where most everybody has a pet crackpot or conspiracy theory they're working on with their AI companion, and it's considered normal. "Hey Bob, how's the physics going?" "Pretty good, I might get the Nobel next year. How bout the lizard people?" "The evidence is piling up and we got some great renderings, the media will have to listen to us soon." "Alrighty, see you tomorrow."

You’d think such people would even talk to other people, sheesh.

The best conspiracy theory could be, of course, that other people don’t actually exist. They are a figment of imagination put up by the brain to cope with the utter loneliness.