What is the probability of my hypothesis, given my evidence
P(H|E) = P(H)P(E|H)/P(E)
Diachronic means “through time”, which means that you can “update” your hypothesis as you collect more evidence, using the formula.
In other words…
Posterior = P(Prior)P(Likelyhood)/Normalizing Constant
Each time a new piece of evidence arises, I can take the “Prior” and update it by multiplying by the (Likelyhood/Normalizing Constant) ratio which will give you what is called “a new level of belief”