I can fix or build any system you put in front of me now. But nobody thinks about me until their basement's flooding at midnight, and then I'm the hero for an hour and forgotten by morning. I keep the whole world running, and most people never once picture the guy who does it.
More people experience this than they realize.
You keep things running, and you're invisible until something breaks.
If this sounds familiar, the Library can help you find the bigger picture.