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Guess Again: The Ehrenfeucht-Mycielski Sequence |

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The nice friendly way to play Twenty Questions is to select in your mind a secret something (a person, place, or thing) and to give honest answers to a bunch of true/false questions about it. A les…

The nice friendly way to play Twenty Questions is to select in your mind a secret something (a person, place, or thing) and to give honest answers to a bunch of true/false questions about it. A less nice way to play is to keep changing what you have in mind so that you can answer “No” to every question. That’s not a good way to keep friends, but something very much like it is a good way to generate a quasi-random sequence of bits. Cartoon courtesy of Ben Orlin. Order his new book “Change is the Only Constant” now! First I’ll play nice. I’m thinking of

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