I think the point is that there&#x27;s no question of <i>causality</i> between values of constants and the existence of life, just <i>conditionality</i>, which is what Bayes knows how to talk about.<p>That is, the anthropic principle doesn&#x27;t try to &quot;explain&quot; why a constant takes a value. It just notes that the conditional property of us observing that value (given that we exist) is 1, regardless of what the unconditional property might be (or even whether it&#x27;s variable to begin with).