Artificial Intelligence / AI 0103 · Atom · ~20 seconds
Admissible
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A heuristic is admissible when it never overestimates the true remaining cost — systematically optimistic, never inflated.
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The crow's route ignores obstacles, so it can only undershoot: every straight-line estimate is admissible by construction.
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Optimism is the load-bearing property; accuracy is a luxury. Video 0110 prices the difference.