A few of my favorite “Notable theories” (not in any particular order)
Ever since they landed on the Moon.
The Beatles screwed everything up.
Ever since right turn on red was instituted.
Jimmy Hoffa was found under Tammy Faye Bakkers makeup.
The Nazi’s fly UFO’s from secret bases in Antarctica.
Anyone care to add? :)
Honestly, the “landed on the Moon “ theme is the only one I know of.
Don’t know why it’s stuck with me all these years.