Patrick Grim is an American philosopher. He has published on epistemic questions in philosophy of religion, as well as topics in philosophy of science, philosophy of logic, computational philosophy, and agent-based modeling. He is author, co-author or editor of seven books in philosophical logic, philosophy of mind, philosophy of science and computational philosophy. He is currently editor of the American Philosophical Quarterly and founding co-editor of over forty volumes of The PhilosopherâÂÂs Annual, an attempt to collect the ten best philosophy articles of the year.àGrim's popular work includes four video lecture series on value theory, informal logic, and philosophy of mind for The Great Courses. Grim's academic posts have included Distinguished Teaching Professor of Philosophy (Emeritus) at the State University of New York at Stony Brook, àDistinguished Visiting Professor in Philosophy at the University of Michigan at Ann Arbor, àand fellowships and lectureships at the Center for Complex Systems at the University of Michigan at Ann Arbor and at the Center for Philosophy of Science at the University of Pittsburgh.
The classic picture of the philosopher is as an individual working alone with quill and paper. Formal philosophy may take the form of theorems.àGrim violates that picture in two respects: he is known as an innovator in computational philosophy, working extensively with computer modeling, and his work has often been conducted using a research team.àStarting with work leading up to The Philosophical Computer, Grim, Paul St. Denis, and Gary Mar used results from chaos theory and fractal geometry as an inspiration for modeling self-reference in infinite-valued logics and embodied game theory within cellular automata to obtain results regarding the evolution of cooperation and the computational universality and formal undecidability of the spatialized prisonerâÂÂs dilemma.àIn later work with other research teams he developed models of meaning, language acquisition, and Gricean pragmatics using simple agents embedded in a spatialized cellular automata environment of predators and prey and with learning techniques including simple imitation, localized genetic algorithm, and neural nets.àSimilar tools were applied with another team to questions of prejudice reduction, with an eye to the contact hypothesis in social psychology and using graphic models of model robustness.àLeading a strongly cross-disciplinary team under the auspices of the Modeling Infectious Disease Agent Study, Grim developed network models of health-care belief dynamics and polarization in Black and White communities based on data from the Greater Pittsburgh Random Household Health Survey. Grim turned to models of scientific communication on epistemic landscapes, which branched out to àmodels of differences in network information transfer by way of âÂÂgerms, genes, and memes.â With a particularly long-lasting research team, his work has used agent-based modeling in focussing on issues of opinion polarization, with implications for political representation structures, the dynamics of jury deliberations, and formal measures of polarization.àThe role of expertise in group deliberations has also been part of the picture.àMost recently, and with a further research group, Grim has developed Bayesian network models of scientific theories as âÂÂwebs of belief,â drawing implications regarding theory-sensitivity to evidence at different points and a Kuhnian punctuated equilibrium of scientific change.
Within philosophy of religion, Grim is known for a Cantorian argument against the possibility of omniscience.àIn its simplest and original set-theoretic form (elaborated and buttressed in later work):<blockquote>There can be no set of all truths.àGiven any set of truths T, there will be a power set PT of all subsets of that set. For each element of that power set there will be a unique truth: that a chosen truth t is or is not a member of that subset, for example.àBut by CantorâÂÂs theorem the power set PS of any set is larger than the set S itself: any one-to-one mapping of elements of IS to elements of S is bound to leave some element of PS out.àAny set of truths will therefore leave some truth out: there can be no set of all truths.àBut what an omniscient being would have to know would appear to be precisely a set of all truths.àThere can therefore be no omniscient being. </blockquote>
âÂÂàPatrick Grim, Frank Seidl, Calum McNamara, Isabell N. Astor, and Caroline Diaso, âÂÂThe Punctuated Equilibrium of Scientific Change: A Bayesian Network Model,â Synthese 200 (2022): 1-25.
âÂÂàPatrick Grim, Trina Kokalis, Ali Alai-Tafti, Nick Kilb, and Paul St. Denis, "Making Meaning Happen," Journal for Experimental and Theoretical Artificial Intelligence 16 (2004), 209-244.
âÂÂàPatrick Grim, "Simulating Grice: Emergent Pragmatics in Spatialized Game Theory," in Anton Benz, Christian Ebert, and Robert van Rooij, Language, Games, and Evolution, Springer-Verlag, 2011.
âÂÂàPatrick Grim, Daniel J. Singer, Aaron Bramson, Bennett Holman, Sean McGeehan & William J. Berger, âÂÂDiversity, Ability and Expertise in Epistemic Communities,â Philosophy of Science 86 (2019): 98-123.
âÂÂàPatrick Grim, Daniel J. Singer, Steven Fisher, Aaron Bramson, William J. Berger, Christopher Reade, Flocken and Adam Sales âÂÂScientific Networks on Data Landscapes: Question Difficulty, Epistemic Success, and Convergence,â Episteme 10 (2013), 441-464.
âÂÂàPatrick Grim, Daniel J. Singer, Christopher Reade, and Steven Fisher, âÂÂGerms, Genes, and Memes: Functional and Fitness Dynamics on Information Networks,â Philosophy of Science 82 (2015),
âÂÂàPatrick Grim, "Threshold Phenomena in Epistemic Networks," Proceedings, AAAI Fall Symposium on Complex Adaptive Systems and the Threshold Effect, FS-09-03, AAAI Press 2009.
âÂÂàPatrick Grim, Evan Selinger, William Braynen, Robert Rosnberger, Randy Au, Nancy Louie, and John Connolly, "Modeling Prejudice Reduction: Spatialized Game Theory and the Contact Hypothesis," Public Affairs Quarterly 19 (2005), 95-126.
âÂÂàAaron Bramson, Patrick Grim, Daniel J. Singer, William J. Berger, Graham Sack, Steven Fisher, Carissa Flocken, and Bennett Holman, âÂÂUnderstanding Polarization: Meanings, Measures, and Model Evaluation,â Philosophy of Science 84 (2017), 115-159.
âÂÂàPatrick Grim, "The Undecidability of the Spatialized Prisoner's Dilemma," Theory and Decision 42 (1997), 53-80.