Physical Review B Physical Review Focus Are You Living in a Simulation? Many works of science fiction as well as some forecasts by serious technologists and futurologists predict that enormous amounts of computing power will be available in the future. Let us suppose for a moment that these predictions are correct. One thing that later generations might do with their super-powerful computers is run detailed simulations of their forebears or of people like their forebears. Apart form the interest this thesis may hold for those who are engaged in futuristic speculation, there are also more purely theoretical rewards. The structure of the paper is as follows. A common assumption in the philosophy of mind is that of substrate-independence. Arguments for this thesis have been given in the literature, and although it is not entirely uncontroversial, we shall here take it as a given. The argument we shall present does not, however, depend on any very strong version of functionalism or computationalism. We shall develop this idea into a rigorous argument. Writing .
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Journal home : Nature Raphael Lis, Charles C. Karrasch, Michael G. Poulos, Balvir Kunar, David Redmond, Jose G. Barcia Duran, Chaitanya R. Badwe, William Schachterle, Michael Ginsberg, Jenny Xiang, Arash Rafii Tabrizi, Koji Shido, Zev Rosenwaks, Olivier Elemento, Nancy A. Speck, Jason M. Browse Journals By RSS/Atom Feeds What are RSS and Atom feeds? RSS and Atom news feeds are computer-readable files that summarise new content as it appears on a website. (RSS and Atom are just two different formats that do basically the same thing.) Each feed includes a heading, a brief description of the new content and a link through to the website. Stay in touch with new publishing News feeds are a very convenient way of keeping up-to-date with a large number of websites. ‘ Syndicating ’ content News feeds are also an easy way for other websites to get and display content. How can I get Cambridge Journals Online feeds? You need to install a newsreader on your computer.
Acceleration Watch (Understanding Accelerating Change) Warming is real - and has benefits One month ago, the world heard that global warming could lead to a global catastrophe "on a scale similar to those associated with the great wars and the economic depression of the first half of the 20th century." This assessment, from Sir Nicholas Stern, former chief economist of the World Bank, made banner headlines and led prominent leaders such as British Prime Minister Tony Blair to urge immediate action to stem global warming. It also led some prominent environmentalists to denounce Sir Nicholas for what they deemed an outrageous study bereft of credibility. None of the environmentalists issued a stronger denunciation, or has better environmental credentials, than Richard S.J. Tol. The series Tol is a Denier, to use the terminology of the "science-is-settled" camp in the increasingly polarized global warming debate. Also like many other Deniers, he doesn't fit the stereotype that those who use the epithet imagine. Tol is no fringe outsider to the scientific debate.
Nature Publishing Group : science journals, jobs, and information 25 Greatest Science Books of All Time Read an essay on the greatest science books by Nobel laureate Kary B. Mullis. 1. and 2. The Voyage of the Beagle (1845) and The Origin of Species (1859) by Charles Darwin [tie] One of the most delightful, witty, and beautifully written of all natural histories, The Voyage of the Beagle recounts the young Darwin's 1831 to 1836 trip to South America, the Galápagos Islands, Australia, and back again to England, a journey that transformed his understanding of biology and fed the development of his ideas about evolution. Yet Darwin's masterwork is, undeniably, The Origin of Species, in which he introduced his theory of evolution by natural selection. "The most important science book of all time. 3. Dramatic is an unlikely word for a book that devotes half its pages to deconstructions of ellipses, parabolas, and tangents. Principia marks the dawn of modern physics, beginning with the familiar three laws of motion ("To every action there is always opposed an equal reaction" is the third). 4.