By John Green, An Abundance of Katherines (2006) is a delightful young adult novel – beautifully written, hilarious in places – about various misadventures of Colin, an anagrammatic teenage prodigy (but maybe not genius) and his friends. There's a wee bit of math (that could have been done better) and a truckload of fun, all served up with a splash of thoughtfulness and Meaning-of-Life philosophy. From the epilogue:

... And he found himself thinking that maybe stories don't just make us matter to each other—maybe they're also the only way to the infinite mattering he'd been after for so long.

And Colin thought: Because like say I tell someone about my feral hog hunt. Even if it's a dumb story, telling it changes other people just the slightest little bit, just as telling the story changes me. An infinitesimal change. And that infinitesimal change ripples outward—ever smaller but everlasting. I will get forgotten, but the stories will last. And so we all matter—maybe less than a lot, but always more than none.

... beautiful, hopeful, true. pona-lukin, pona tenpo kama, lon

_{(in Wikipedia with many spoilers: An Abundance of Katherines — and cf Worth the Cost (2004-02-03), Easter Morning Musings with a Friend (2008-03-24), The Meaning of Life (2008-07-24), Lines of a Story (2017-11-28), Never Forgotten (2024-08-16), ...) - ^z - 2024-11-12}