The killer app that got the world ready for appliances was the light bulb. So the light bulb is what wired the world. And they weren't thinking about appliances when they wired the world. They were really thinking about - they weren't putting electricity into the home. They were putting lighting into the home.
The education that prepared me was my general education classes which I tried to avoid when I was a stupid undergraduate but which gave me the foundation of general knowledge that makes a career as a writer possible.