About us
Cambridge Skeptics is a not-for-profit community organisation which is on a mission to promote science, positive skepticism and critical thinking skills via public engagement. We host monthly Skeptics in the Pub events with speakers on various subjects as well as social events. We also run events in conjunction with the Cambridge Science Festival.
Our events are open to everyone, whether you consider yourself to be a skeptic or not. If the subject matter is of interest, please come along and join the discussion.
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Are We Living in the Matrix? With Prof David Tong
The Blue Moon, 2 Norfolk Street, Cambridge, GBNo. No doubt for many reasons. But one of them is that it seems to be impossible to simulate the known laws of physics on a computer. This raises a far more interesting question than the daft one we began with: is it possible, even in principle, to write down the laws of physics in a form that could be simulated? Surprisingly, no one knows how to do this. In fact, a powerful mathematical obstruction, the Nielsen–Ninomiya theorem, suggests that, in a precise sense, it cannot be done. Prof Tong will attempt to explain this result, the underlying reasons for it, and some recent work that tries to get around it.
Prof David Tong is a theoretical physicist at the University of Cambridge, where he works on quantum field theory, particle physics, and condensed matter systems. He is known for his clear and engaging teaching, as well as his widely used lecture notes that have introduced many students to modern theoretical physics. His research explores the deep mathematical structures underlying the laws of nature, often focusing on how these laws behave in extreme or unexpected regimes.
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