Hasok Chang is the Hans Rausing Professor of History and Philosophy of Science at the University of Cambridge, and a Fellow of Clare Hall.  Previously he taught for 15 years at University College London, after receiving his PhD in Philosophy at Stanford University following an undergraduate degree at the California Institute of Technology.  He is the author of Is Water H₂O? Evidence, Realism and Pluralism (Springer, 2012), winner of the 2013 Fernando Gil International Prize; Inventing Temperature: Measurement and Scientific Progress (Oxford University Press, 2004), joint winner of the 2006 Lakatos Award; and Realism for Realistic People: A New Pragmatist Philosophy of Science (Cambridge University Press, 2022).  He is also co-editor (with Catherine Jackson) of An Element of Controversy: The Life of Chlorine in Science, Medicine, Technology and War (British Society for the History of Science, 2007), a collection of original work by undergraduate students at University College London.  He is a co-founder of the Society for Philosophy of Science in Practice (SPSP), and the Committee for Integrated History and Philosophy of Science.  He was the President of the British Society for the History of Science from 2012 to 2014.

Helen De Cruz holds the Danforth Chair in the Humanities at Saint Louis University. Her work examines why and how humans engage in pursuits that seem remote from the immediate concerns of survival and reproduction, such as theology, mathematics, and science. She is author of several monographs, most recently Wonderstruck: How Awe and Wonder Shape the Way We Think (Princeton University Press, forthcoming) and Religious Disagreement (Cambridge University, 2019). She has recently edited and illustrated the volume Philosophy Illustrated: Forty-Two Thought Experiments to Broaden Your Mind (Oxford University Press, 2022), and is co-editor of Philosophy through Science Fiction Stories (with Johan De Smedt and Eric Schwitzgebel, Bloomsbury, 2021), as well as of Avatar: The Last Airbender and Philosophy (forthcoming with Wiley).

Her papers have appeared in journals such as Philosophical Studies, Australasian Journal of Philosophy, Philosophers' Imprint. In addition to her PhD in Philosophy (2011, University of Groningen), she holds a PhD in Archaeology and Art Sciences (2007, Free University of Brussels). She has written public philosophy for among others the Guardian, Aeon, Psyche, and The Raven Magazine. In her spare time, she writes short fiction that has appeared in venues such as EscapePod and Hyphenpunk, and plays the Renaissance lute and archlute.

Jenann Ismael is the William H. Miller III Professor of Philosophy at Johns Hopkins University and co-founder of the Natural Philosophy Forum (https://www.naturalphilosophyhopkins.org/). She is a philosopher of physics, who also thinks very broadly about what the universe is like and how we fit into it.  She’s written four books and many articles about topics including time and space, about symmetry and the laws of nature, about the foundations of quantum mechanics, about causation and probability, about the self and about free will.