Many years ago I had a roommate who was an actual Marxist (this was in Berkeley CA) and who had a kind of a job or volunteer position with a local radical politician trying to influence local politics. They would do things like go to city council meetings and march around the room singing songs. Dumb shit like that.
One day I'm reading in my room and the lights flicker and I hear a yalp from the living room. I go out to investigate and I can smell the magic smoke (not weed, electrical) and the roomie is standing there with a screwdriver and a spooked look on her face.
It transpires that she wanted to move a certain bookshelf to a certain spot and have it flush against the wall, but it was blocked by a little external electrical outlet. It was an old house, you see, (old for the West Coast that is) and when it was electrified they didn't both to run the wires through the walls. Instead they ran little conduits along the baseboards and mounted external socket blocks so we could plug in lamps, etc. One of these external electric sockets boxes was in the way of the bookshelf.
You can see where this is going?
She got a screwdriver and tried to remove the electric socket box without turning off the circuit. The flickering lights were when she shorted the circuit with the screwdriver and made the magic smoke come out.
Fortunately she wasn't hurt, just startled.
Now this person was in her fifties! How the hell to you get to be fifty years old and not know how electricity works!? And yet she felt confident that she knew how cities and countries should be run.
I think there are at least two points here:
1.) We have already made the world more complicated than the average person can understand. Computers are like pouring fuel on that fire, but it's been burning for a while now.
2.) People can be really stupid and ignorant and yet feel like they know what's going on and what to do about it.
I think the obvious though perhaps unpleasant conclusion is that we should look to radical simplification in all areas, and treat complexity as something that should be budgeted, treated as an expense and necessary evil.