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Limits of Computation 9 min

Could a superintelligence never be wrong?

How realistic is a machine that knows everything and never errs? Through the limits set by Turing, Gödel, Landauer and Bekenstein, we look at what artificial superintelligence could achieve and what it never will.

Software-Defined Networking 8 min

Where does a network keep its brain?

In a software-defined network the switches make no decisions; they only look up a table. Using virtual networks built inside a single computer, we look at where decisions are made, why the first packet is slow, and how a network breaks.