Kilikya Felsefe Dergisi, sa.2, ss.1-19, 2025 (TRDizin)
The American philosopher Theodore (Ted) Sider asserts that the role of metaphysics is not simply to investigate reality but to uncover the fundamental properties that constitute reality. In this respect, metaphysics tries to discoverthe world's most fundamental and natural properties. According to Sider, metaphysical structures should encompass these fundamental properties and be built on them. Ideological views can also influence metaphysical structures, affecting how we interpret natural properties and engage with fundamental ontology based on these properties. According to Sider and some of his contemporaries, the perspectives of metaphysics have constantly shifted within this framework, and the current metaphysical trend can be called the era of postmodal metaphysics. According to Sider, this period offers new arguments for eliminating some "philosophical obsessions" originating from modality, causation, and conceptual analysis to which metaphysics has often attached importance in previous periods. Such pursuits lead philosophers to secondary investigations instead of questioning the essential foundations of metaphysical structures, grounds and natural properties. According to Sider, metaphysics, especially in the post-Lewisian era, has moved into a postmodal phase in terms of trying to discover the most fundamental properties in a philosophical context. This paper will focus on Ted Sider's notions of naturalness, metaphysical structure, and post-modality to present his metaphysical views and main arguments.