I was reminded today of a short Perl course I did a few years ago. (And remember nothing of, of course.) It was Perl for web developers, and there was space for a couple of sysadmins.
One webdev achieved enlightenment. Her eyes lit up as she grasped the nature of Turing completeness, and the power of just giving a machine a set of precise worked-out instructions. "But you could write a program to do ... anything!" Yes. Yes, you could.
With computers basically taking over civilisation, this leads me to wonder: what the hell do normal people think computers actually do, and how the hell do they think they do it? Normal people, I want you weighing in on this.