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Computers are already ubiquitous. Soon they might start changing form entirely and making broader inroads into our daily lives. Scientists working in the field of biological computing are close to programming living cells so that they can diagnose human disease and repair environmental damage. Automakers are racing to automate cars, although they face a number of challenges before self-driving vehicles can become ubiquitous. And people have begun to ask seriously: Could we be living in a computer simulation right now?
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