billswift comments on Pound of Feathers, Pound of Gold - Less Wrong
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Comments (15)
[...rationality discussion...]
I must be missing something. I thought the point of this riddle was the difference between avoirdupois and Troy weight -- a simple matter of (rather esoteric) factual knowledge not contained in the structure of the question.
Another way of looking at it is an ambiguity between two close but not identical meanings of "pound". Which is why it is tricky, not really because it's esoteric. Also, it's not really all that esoteric, most people learn about the difference as kids, mostly through this riddle.