“Two plus two equals seven.”

“No, two plus two equals four.”

“That’s misinformation.”

“I can prove it.  Look.  I take these two marbles that someone lost.  Now I take another two marbles, that someone lost, and add them to the first two marbles.  Two marbles plus two marbles equals four marbles.  See?  One, two, three, four.”

“That’s just your opinion.  Two plus two equals seven.”

“Okay, prove it.”

“I don’t need to prove it.  I know that two plus two equals seven.”

“You have no proof that two plus two equals seven.  But I just proved to you, using marbles, that two plus two equals four.”

“That wasn’t proof.  That was just your opinion and, I repeat, misinformation.”

“How is it misinformation?”

“It’s misinformation.”

“But how?  How is it misinformation?”

“It’s misinformation because it’s misinformation.”

“I see.  You’re a good obedient citizen, aren’t you?”

“Yes, and you could be an obedient citizen, too, if you accepted that two plus two equals seven, and stop spreading misinformation.”