As long as there are rivers, there will be libraries

 

For as long as there are rivers, there will be bridges across them.

For as long as there are bridges, there will be neon lights illuminating them.
For as long as there are neon lights, there will be moths orbiting them.
For as long as there are moths, there will be walnut orb-weaver spiders catching them in their orb-webs.
For as long as there are nuctenea umbratica, there will be entomologists fascinated by them.
For as long as there are entomologists, there will be Latin names to denote them.
For as long as there are Latin names, there will be encyclopedias to gather them.
For as long as there are encyclopedias, there will be books to explain them.
For as long as there are books, there will be libraries.

No rivers, no libraries.

And rivers are running dry.