Of course, it is difficult to see how the random procedures of natural selection could have been clever enough to give an automaton predator a complete copy of the prey’s program. This would sound more like espionage than natural selection! And a partial program (in the sense of a piece of Turing machine ‘tape’, or something approximating a Turing machine tape) would hardly be of much selective advantage to the predator. The unlikely possession of the whole tape, or at least some entire self-contained part of it would seem to be necessary.