Idiocracy is already here, in a way. I wonder how the technological developments correlate with the number of people with at least a basic clue about how their latest toys work. Most can't even change a car tyre or describe what a car's gearbox does.
There is even a school of self-declared intellectuals, especially in arts and literature, who pride themselves on knowing nothing about math and technology. They are in fact admitting they haven't got a clue about much what is happening in the world, yet they somehow find this ennobling.