aelephant comments on An Intuitive Explanation of Solomonoff Induction - Less Wrong

53 Post author: Alex_Altair 11 July 2012 08:05AM

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Comment author: aelephant 15 July 2012 12:15:36AM 0 points [-]

How do you know some algorithms run forever if you have no way of proving that an algorithm is in the set "runs forever" or not?

Comment author: Nornagest 15 July 2012 01:50:25AM *  5 points [-]

You can prove that some algorithms run forever. Similarly, you can prove that some algorithms halt. What you can't do is come up with a procedure that will determine whether an arbitrary algorithm you feed it halts or not.