Why did the autobiography feel self-centered?

This joke tickles our funny bone with a classic case of wordplay, taking a common phrase and twisting it to its most literal meaning. When we call someone "self-centered," we usually mean they're a bit full of themselves, perhaps neglecting the feelings or needs of others. But an autobiography, by its very definition, is a book written by the author about their own life. It's *supposed* to be about itself, making the punchline a wonderfully obvious, yet amusing, observation.

The humor here comes from the delightful absurdity of applying a human personality trait to an inanimate object, or rather, a literary genre. Autobiographies have been around for centuries, from ancient memoirs to modern-day celebrity tell-alls, all serving the purpose of sharing one's personal journey. The joke playfully highlights this inherent focus, making us chuckle at the idea of a book literally embodying the "self-centered" label in the most innocent way possible. It's a clever nod to the genre's core purpose, without being mean-spirited.