Carl Sagan has a good short story to this effect about a dragon in his garage: http://people.whitman.edu/~herbrawt/classes/110/Sagan.pdf
> Now, what's the difference between an invisible, incorporeal, floating dragon who spits heatless fire and no dragon at all? If there's no way to disprove my contention, no conceivable experiment that would count against it, what does it mean to say that my dragon exists? Your inability to invalidate my hypothesis is not at all the same thing as proving it true. Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value they may have in inspiring us or in exciting our sense of wonder. What I'm asking you to do comes down to believing, in the absence of evidence, on my say-so. The only thing you've really learned from my insistence that there's a dragon in my garage is that something funny is going on inside my head.
I think the problem he’s addressing is when people use beliefs in lieu of evidence. Believing the election was rigged is fine, but without evidence you haven’t given Sagan or other evidence-based evaluators reason to believe your claim.
https://en.m.wikipedia.org/wiki/Argument_from_ignorance
https://en.m.wikipedia.org/wiki/Thought-terminating_clich%C3...
