[Rationality, From A to Z#^0917ad

With evidence and insight we can update those beliefs, and the mathematically accurate way to update those beliefs is using Bayes’ Theorem.^[ Rationality, From A to Z#^0917ad] Even if we don’t choose to be mathematically precise when we update our beliefs, it is useful to have an internalized version of Bayes’ Theorem so that we can avoid making systematically incorrect updates to our beliefs.