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Turing predicted that by about 2000, judges would ID the machine at most what percent of the time?

70 percent, after five minutes of questioning.

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  1. 50 percent, after one hour
  2. 99 percent, after one minute
  3. 70 percent, after five minutes ✔

Why: In 1950 Turing guessed that in about fifty years, an average interrogator would have no more than a 70 percent chance of spotting the machine after five minutes of questions.

Huh, didn't know that: The 70 percent and five-minute figures were Turing's prediction, not fixed rules for every Turing test.

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Why was the robot so calm in the interview? It had nerves of steel.
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References

Answer: 70 percent, after five minutes. In 1950 Turing guessed that in about fifty years, an average interrogator would have no more than a 70 percent chance of spotting the machine after five minutes of questions.

  1. Stanford Encyclopedia of Philosophy: The Turing Test plato.stanford.edu/entries/turing-test
    an average interrogator will not have more than 70 percent chance of making the right identification after five minutes of questioning
    Checked 2026-10-10.

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