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In 1959, Richard Feynman asked "Why can't we fit the entire Encyclopedia Britannica on the head of a pin?" 1/25,000 of its actual size. Aside from the fact that we all use Wikipedia now, how small could we get it down to today? 1/100,000? 1/1,000,000?

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In 1959, Richard Feynman asked "Why can't we fit the entire Encyclopedia Britannica on the head of a pin?" 1/25,000 of its actual size. Aside from the fact that we all use Wikipedia now, how small could we get it down to today? 1/100,000? 1/1,000,000?	1