> A better variant of the objection says that a machine can never "take us by surprise." This statement is a more direct challenge and can be met directly. Machines take me by surprise with great frequency. This is largely because I do not do sufficient calculation to decide what to expect them to do, or rather because, although I do a calculation, I do it in a hurried, slipshod fashion, taking risks.

This seems like a cop out. Sure, if you do your calculations wrong, it doesn’t behave as you expect. But it’s still doing exactly what you wrote it to do. The surprise is in realizing your expectations were wrong, not that the machine decided to behave differently.