Matthew David Segall is an American philosopher, educator, and writer who combines process philosophy, German Idealism, and the natural sciences into an accessible vision of a dynamic, evolving cosmos. A leading advocate of panpsychist and process-relational thinking, he explores how mind and matter interpenetrate, how nature self-organizes, and how human consciousness participates in the creativity of the universe. Segall also runs Footnotes2Plato, a long-running blog and media hub where he translates dense philosophical traditions into clear, engaging commentary for a general audience.
He teaches at the California Institute of Integral Studies (CIIS), where he specializes in the history of philosophy, process thought, and the philosophy of nature. Beyond academia, Segall is widely recognized for his essays, public lectures, and collaborations with scientists and theologians seeking alternatives to mechanistic worldviews. He is the author of several books, including Physics of the World-Soul and Crossing the Threshold, both exploring the intersections of cosmology, consciousness, and planetary ethics. Segall has become a distinctive voice in conversations about the future of philosophy and humanity’s place in a living, unfolding universe.
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