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Not just a matter of time: Measuring complexity
Are there problems computers will never be able to solve, no matter how powerful they become?
Are there problems computers will never be able to solve, no matter how powerful they become?
In the 1930s Alan Turing discovered a computer program that is logically impossible. What other limits are there to computation?
Journey to the limits of computation with a number that's easy to describe but can't be calculated.