I decided to write a book about clouds.

The humor in this one-liner floats on a clever bit of wordplay. The punchline hinges on the double meaning of "highbrow." We usually think of "highbrow" as describing something intellectual, sophisticated, or perhaps a little bit pompous. But, of course, clouds themselves are literally "high" in the sky, making any title about them inherently "high" in a very literal sense. The joke plays on this unexpected literal interpretation, creating a chuckle by twisting our common understanding of the word.

Think about all those serious, academic titles out there, the ones that make you feel like you need a dictionary just to read the cover. The idea of struggling to find a title for a book about something as naturally lofty as clouds, yet wanting to avoid a title that sounds too intellectually "up there," creates a delightful absurdity. It subtly pokes fun at the often-earnest world of literature and academia, where titles can sometimes feel as ethereal and complex as the subjects they cover. It's a lighthearted jab at pretension, grounded in the simple, observable fact that clouds are, well, high.