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A satisfactory definition of intelligence has never been found, and as a result it means different things to different people. What it is may remain too complex for a succinct definition, but the theory and practice of information handling have clarified what it does fur us: it enables us to guess better, and the discovery of unexpected orderliness is the chief means of doing this.
Last week's recommendation by US high-energy physicists that the next big accelerator should be a 20 TeV proton–antiproton collider was bold but correct. For there is a new physics to be found.
