Like any other international public good whose origin can be traced but whose consequences are far-reaching and universal, we can only arrive at a solution if the big guns decide to cooperate.

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Eventually they arrive at the very same solution that Sarah initially offered.

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Since there might be more than one logically consistent solution to a problem, the idea would be to enable a computer to arrive at the same truth value that a human would, by reasoning in a similar fashion.

ECONOMIST: Fuzzy logic