1 Introduction. Part I: Naturalising Kantian Metaphysics.- 2 Two worlds in conflict.- 3 Eliminating ordinary objects.- 4 Eliminating intuitive metaphysics.- 5 Metaphysics is not (only) about existence.- 6 Levels of reality – a naturalist’s take on metaphysics.- 7 Realism and idealism.- 8 Imposing structure onto the world.- Part II: The Predictive Brain.- 9 The problem of underdetermination.- 10 Discovering grouping principles.- 11 From the concept of life to neural processing.- 12 Hyperpriors and Kant’s views on cognition.- Part III: Constructing the Manifest World.- 13 Individuation by prediction and debunking realism.- 14 Explaining manifest structures.- 15 Na¿¿ve classification and the nature of vagueness.- 16 Information processing and the clash.- 17 Reality and logic at conflict.- 18 Philosophising and the clash.- 19 Summary.- Bibliography.- Index.