 It is the continuity between everyday life (form of life) and science that speaks in favor the existence of facts.They are not constituted by beliefs, neither by the beliefs of an individual (solipsism), nor by the beliefs of collectives (cultures) or even ideal discourse communities as seen in the work of Jürgen Habermas, or in Hilary Putnam's so-called internal realism, which is in fact a version of idealism.Naturalism is the dominant metaphysical attitude in the natural sciences as well as in a good part of the social sciences and even in the humanities (sometimes seen in a combination of post-modernism and naturalism).