John Leslie

John Leslie is professor emeritus of philosophy at the University of Guelph, and a fellow of the Royal Society of Canada. The End of the World: The Science and Ethics of Human Extinction is published by Routledge.

Letter
Reacting to my account of the Hawking-Penrose debate, L.C. Laming (Letters, 19 September) asks how on earth there could be ‘regions so distant that no light from them could yet have reached us’. Surely, he suggests, light must have been able to ‘traverse totally the much smaller universe of the remote past’. The solution to Laming’s puzzle is that the cosmic expansion constantly added to...

John Leslie comes to tell us that the end of the world is closer than we think. His book is no ordinary millennial manifesto, however. Leslie is a sophisticated philosopher of science, and the...

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