This is the revision history for halting problem in <freenode.net:#perlbot>

factoid_idsubjectcopulapredicateauthornamespace
9762 halting problem is http://en.wikipedia.org/wiki/Halting_problem - why code cannot fully introspect any other arbitrary code. For the flip side is: https://metacpan.org/module/Acme::HaltingProblem rindolf <*:##NULL>