Could North Korea be behind commentator Alva Noë's car problems? Not likely. Just as it's not likely a theory of everything will ever explain human behavior. Ed Jones/AFP/Getty Images hide caption

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Is science more like a pyramid, or a sun-dappled patch of ground? Fayez Nureldine/AFP/Getty Images hide caption

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Swarms of locusts in Madagascar, or clouds of elementary particles, without sound, odor, flavor or color? Reality is harder to pin down than you first might think. Bilal Tarabey/AFP/Getty Images hide caption

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