High Quality Content by WIKIPEDIA articles! Libertarianism is one of the main philosophical positions related to the problems of free will and determinism, which are part of the larger domain of metaphysics. In particular, libertarianism, which is an incompatibilist position, argues that free will is logically incompatible with a deterministic universe and that agents have free will, and that, therefore, determinism is false. Although compatibilism, the view that determinism and free will are not logically incompatible, is the most popular position on free will amongst professional philosophers, metaphysical libertarianism is discussed, though not necessarily endorsed, by several philosophers, such as Peter van Inwagen, Robert Kane, Robert Nozick,Carl Ginet, Hugh McCann, Harry Frankfurt, E.J. Lowe, Alfred Mele, Roderick Chisholm, Daniel Dennett,Timothy O`Connor, Derk Pereboom, and Galen Strawson.