[bryanrasmussen]

Any sufficiently advanced technology is indistinguishable from magic is generally used to talk about how it works for a less developed civilization meeting a more developed one, but perhaps it also pertains to the non technicians in the magic civilization.

At a certain point of specialization and advancement it no longer seems productive use of your time to try to understand it, leading to large portions of the population who view the technicians holding things together as inscrutable magicians.