&gt; its result can be accurately factored into a probabilistic model of a patient&#x27;s overall health.<p>But <i>my</i> health with respect to an illness is <i>not probabilistic[1]</i>. I either have the illness or don&#x27;t have the illness. Probabilities are not useful when the sample size is one (me).<p>[1] Pedantic: it is probabilistic, but the probability is either 0% or 100% because the confidence interval sucks.