Sebastian Sequoiah-Grayson

Dr. Sebastian Sequoiah-Grayson is a Senior Lecturer in the Department of Computer Science and Engineering at the University of New South Wales (UNSW), within the Faculty of Engineering. He holds an honorary associate position at the Department of Philosophy at the University of Sydney’s School of Philosophical and Historical Inquiry. Previously, he was a lecturer in Logic, Epistemology, and Metaphysics at the University of Sydney and a Postdoctoral Research Fellow. He earned his DPhil in Philosophy from the University of Oxford under Timothy Williamson and Luciano Floridi.

His research spans three core areas: 1) formal logico-mathematical modeling of epistemic phenomena and negative information, 2) philosophy of information—including designing Australia’s first undergraduate philosophy of information unit—which explores topics like moral agency of AI and autonomous systems, and 3) philosophy of music, focusing on developing non-representational theories of meaning for sonic gestures in sound art. Notable collaborations include co-authoring entries on Logic and Information and Semantic Conceptions of Information for the Stanford Encyclopedia of Philosophy with Maricarmen Martinez and Luciano Floridi.

His teaching has included pioneering philosophy of information courses at Sydney, where student work was accepted to the 2021 Australasian Association of Philosophy conference. His music philosophy research seeks to establish success-condition frameworks for interpreting non-representational sound art, distinct from traditional truth-conditional semantics.