What is the definition of Facts Weapon?

A 'facts weapon' is like a superpower that's so convincing it can knock down your reality like a punchline in a bad sitcom. It's that one fact, so meticulously researched and presented, that you can't shake off, even when all your evidence goes to sea.

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Here's an edgy example: "With the undeniable fact that 'oney makes the world go round,' I decided to invest in a lottery ticket, because apparently, if I win, my existential dread will become a financial boon."