Joshua Spencer is a Professor of Philosophy at the University of Wisconsin – Milwaukee (UWM), specializing in metaphysics, philosophy of language, and logic. He holds a PhD from the University of Rochester (2008), with a dissertation titled *Material Objects in Tile Space-Time*. Prior to UWM, he served as the Sutton Post-Doctoral Fellow at Syracuse University and held a one-year position at Auburn University. His research focuses on metaphysical topics such as material objects, space, time, fundamentality, modality, and meaning. He also explores philosophy of language, including issues like the problem of empty names and Russellian plenitude. His teaching spans metaphysics, philosophy of language, and logic. Spencer’s publications address foundational questions in metaphysics and philosophy of language, such as composition as identity, grounding theory, and the Special Composition Question. His work often bridges traditional and contemporary debates, employing rigorous analysis and formal methods. Notable contributions include exploring *plenitudinous Russellianism*, analyzing *metaphysical necessity*, and examining *time travel’s ethical implications*. His interdisciplinary approach integrates modal logic, ontological theory, and conceptual analysis. No scientific awards or grants are explicitly listed in the provided materials. His academic trajectory reflects a strong commitment to exploring foundational questions in analytic philosophy.












