https://philwiki.net/PhilWiki is a reference encyclopedia of philosophy: branches, thinkers, concepts, applied ethics, AI ethics, and study guides, edited for clarity and citation. https://philwiki.net/posts/what-is-metaphysicshttps://philwiki.net/posts/what-is-metaphysicsWed, 24 Jun 2026 08:56:13 -0000Metaphysics is the study of what there is and how it is: being, existence, identity, change, causation, and modality. A reference entry from PhilWiki. https://philwiki.net/posts/trolley-problemhttps://philwiki.net/posts/trolley-problemWed, 24 Jun 2026 08:56:13 -0000The trolley problem: a family of thought experiments probing whether it is permissible to kill one person to save several, and what the cases reveal about moral theory. A reference entry from PhilWiki. https://philwiki.net/posts/metaethics-normative-applied-ethicshttps://philwiki.net/posts/metaethics-normative-applied-ethicsWed, 24 Jun 2026 08:56:13 -0000How meta-ethics, normative ethics, and applied ethics divide the study of morality, how they differ, and how the three levels depend on one another. https://philwiki.net/posts/gettier-problemhttps://philwiki.net/posts/gettier-problemWed, 24 Jun 2026 08:56:13 -0000The Gettier problem: Edmund Gettier https://philwiki.net/posts/free-will-vs-determinismhttps://philwiki.net/posts/free-will-vs-determinismWed, 24 Jun 2026 08:56:13 -0000Free will and determinism: the dispute over whether human choices can be free if every event has a prior cause. A reference entry from PhilWiki covering hard determinism, libertarianism, and compatibilism. https://philwiki.net/posts/branches-of-philosophyhttps://philwiki.net/posts/branches-of-philosophyWed, 24 Jun 2026 08:56:13 -0000A map of the branches of philosophy: metaphysics, epistemology, ethics, logic, and aesthetics, with the major subfields and how the divisions connect. A reference entry from PhilWiki.