One. He puts the bulb in and lets the world revolve around him.
Well first let's talk about the concept behind this whole "light bulb" thing.
Elsa let it go!
Two, but I don't know how they'll fit inside the bulb
It takes two. One to change the bulb and the other to kick the switch.
Twenty-one. One to change it and twenty to form a fact-finding committee to learn more about how it's done.
We're not sure, they've yet to see the light.
WHAT
Two. One to put it in and one to complain that he never screws anything anymore.
Just one. He holds up the bulb and waits for the world to revolve around him.
Because they can't hold it for the next person.
They've both put their faith in the cloud.