In The Internet of Things That Used To Work Better I whined about rebooting my stove. This morning I was stuck outside a hotel room waiting for “engineering” to come and reboot the door. It eventually required a pair of technicians, Luis and Kumar, who jiggled and then replaced batteries (yes, it’s a battery-operated door), then attached two different diagnostic consoles. When they got it working I asked what the problem had been. They had no idea. “Hello, IT, have you tried turning it off and on again?” is the tagline for a civilization whose front-line technicians have no theory of operation. Will the door open when I return tonight? I have no idea. But at least now I know how to turn it off and on again.