A large warehouse with a socket in the ceiling.
   A lightbulb is about 10 feet from the ground, held by a large
   screw-like contraption.
   Large poles extend from the light-bulb holder. Hundreds of burly men
   push on the poles, slowly turning. Elephants, mules, tractors, are
   affixed to these poles, pulling and pulling on the workings of slowly
   lifting the light bulb toward the ceiling.
   A bit off, scientists and engineers are studying lightbulb
   installation. Dust build-up. Alignment factors. Material stresses.
   Datacenters crunch numbers, burning killowatts of electricity and
   turning the flow of a nearby river to steam for cooling. Printers
   constantly print reams of numbers and charts, and flunkies review them
   in depth, traveling to and fro between the scientists and the laborers
   to adjust details around the process of raising the lightbulb toward
   the ceiling.
   Often everybody is asked to stop. "Ohmygod." "We did it again!"
   "Reverse 1 foot and 3.17 inches." "Everybody about face!" "Those are my
   toes!" "Get your derrick away from my giraffe!" "On 3 now!" "One ...!"
   "Two .."
   And the light bulb shakes.
   Under rare conditions, it is possible to change a lightbulb.