The saga of Hans, the Thinking Horse, is an example of why a good scientist must have both skepticism and imagination.

Question

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Hans was believed to be able to solve math problems and understand human language, but it was later discovered that he was actually using subtle cues from his human handlers to answer questions. Skepticism is necessary to question extraordinary claims like Hans', but imagination is also necessary to explore and come up with explanations for unusual phenomena.

The Saga of Hans, the Thinking Horse, Is an Example