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briandmyers · 3484 days ago · link · · parent · post: A Three-Question Quiz To Test Your Rationality
I don't really follow what you're saying here.
The article correctly points out that if you turn over the "9" card and it does have a vowel on the other side, then you've disproved the rule (which I should have realised).
[edit] To be clear - turning over "U" and "9" allow you to disprove the rule; turning over the other two cards tells you nothing about the rule at all.