The classic trolley problem just got a mathematical nightmare upgrade! This meme brilliantly exploits one of math's most delightfully cursed results: the sum of all positive integers (1+1+1+...) somehow equals -1/2 according to analytical continuation of the Riemann zeta function.
So your ethical dilemma is: kill infinitely many people but create "negative half a person" (mathematical absurdity), or do nothing? It's what happens when philosophers let mathematicians design their thought experiments. Even Hilbert's Hotel wasn't this sadistic.