In this book, Plantinga introduces the notion of warrant as an alternative to justification and discusses topics like self-knowledge, memories, perception, and probability.[1] Plantinga's "proper function" account argues that as a necessary condition of having warrant, one's "belief-forming and belief-maintaining apparatus of powers" are functioning properly—"working the way it ought to work".[2] Plantinga explains his argument for proper function with reference to a "design plan", as well as an environment in which one's cognitive equipment is optimal for use. Plantinga asserts that the design plan does not require a designer: "it is perhaps possible that evolution (undirected by God or anyone else) has somehow furnished us with our design plans",[3] but the paradigm case of a design plan is like a technological product designed by a human being (like a radio or a wheel). Ultimately, Plantinga argues that epistemological naturalism- i.e. epistemology that holds that warrant is dependent on natural faculties – is best supported by supernaturalist metaphysics – in this case the belief in a creator God or designer who has laid out a design plan that includes cognitive faculties conducive to attaining knowledge.[4] # [[vera]] I'm not really a fan of this, the whole "designer" bullshit [[bullshido]]