The Mind Reader
after C. E. Shannon & D. W. Hagelbarger · Bell Telephone Laboratories, 1953
Think of a bit, 0 or 1, and press it. The machine has already guessed what you will choose. Be unpredictable. First to 25 wins.
| Expert | Watching | Seen | Says | P(1) | Trust |
|---|
Thirty-one experts each watch one view of your history: raw bits, whether you switch or stay, whether you copy the bit k back (cycles), how you react to being read, run length and balance. Each keeps fading counts of what you did next. Every round, experts that called it right gain trust and wrong ones lose it, so the panel learns which of your habits is loudest. The trust-weighted average becomes the guess shown here, committed before you press. Only the most trusted are listed. Yes, peeking is cheating. The machine forgives you.
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◉ In 1953, David Hagelbarger and Claude Shannon each built a relay machine at Bell Labs that predicted whether a human would choose “heads” or “tails.” Against 9,795 human choices, Hagelbarger’s machine was right 5,218 times, because people are worse at being random than they believe. This Mk II replaces a fixed vote with a panel of experts that learns, round by round, which of your habits gives you away: switching too often, avoiding runs, repeating a rhythm, or flinching after being caught.