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How likely is this prediction to be true?
Machines are less arrogant than humans, and they acknowledge uncertainty in their code by returning a probability distribution or confidence interval of possible answers instead of claiming to know the precise result for every input.
Thomas Bayes anticipated the need for dealing with uncertainty and formulated Bayes's rule.
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A scientist is never certain. … We absolutely must leave room for doubt or there is no progress and there is no learning.