Vanilla PP for Philosophers: A Primer on Predictive Processing Wanja Wiese & Thomas Metzinger 1 What Is Predictive Processing? Seven Core Features 2 Predictive Processing and Predictive Coding 3 Predictive Processing and Bayesian Inference 4 Predictive Processing and the Ideomotor Principle 5 Attention and Precision 6 The Brain as a Hypothesis-Tester 7 Predictive Processing and Karl Friston’s Free-Energy Principle