What Is Bayesian Rationality?

George Dvorsky:

Bayesian Rationality: Bayesian rationality is a probabilistic approach to reasoning. Bayesian rationalists describe probability as the degree to which a person should believe a proposition. They also apply Bayes' theorem when inferring or updating their degree of belief when given new information. Some scientists and epistemologists hope to replace the Popperian view of proof with a Bayesian view.

To which Aleks adds:

I agree (of course). Popperian falsification is just a special case of the Bayesian view: if the likelihood P(data|model) is zero (indicating that the data is impossible given the model), P(model|data) is zero, regardless of the prior. But the Bayesian approach offers some sort of a weighted preference among all the models that haven't been refuted yet, balancing the Ockhamist preference for simplicity through the prior and the desire for accuracy through the likelihood.