Imagine entering the biggest library in the world. You peer down an incredibly long aisle with wooden bookshelves brimming with books. You can see multiple such corridors, all lit with a comfortable warm light. There’s a rich smell of old paper. You can hear some muted voices, perhaps arguing in a whisper. It’s perfect, but vast and difficult to make sense of. Just this day, it doesn’t feel like such a terrible ordeal to just wander for a while, see where your legs take you. Maybe you...