Exposition is a crucial part of any story. It’s how you create your world and how you share it with your reader. Yet it’s also a great way to bring your narrative flow to a crashing halt and bore anyone who was kind enough to pick up your book. Writers often decry the “infodump”, the long, uninterrupted section of pure exposition which sits in the middle of your tale like an undigested lump of carbs. Yet it sometimes seems like a necessary evil. If you’re writing about a secondary world, especially, you need to convey a lot of setting and character information in a hurry, information your reader cannot be expected to know on their own.
There are a couple solutions to this problem, none of which are entirely satisfactory. One is to simply not do it–to shift the burden to your reader. William Gibson is famous for never explaining any of the crazy concepts he dumps on his readers. I remember reading Neuromancer for the first time and having to constantly check dictionaries and encylopedias to figure out what he was talking about–and nine times out of ten, even that wasn’t enough. Gibson expects you to pick things up from context clues. There’s a good reason why he does this, and it’s not just to frustrate his readers. He writes his stories from the perspective of his characters–characters who already know what an Ono-Sendai Deck is for, and what carbon fiber is and why you would build an airplane out of it. He shoves you into their headspace and this builds an incredible sense of immediacy and presence. He makes you live in his world. He’s a master of this, and lesser authors trying the same trick usually fail. Their work becomes impenetrable and mystifying, and not in a good way.
A more common technique is to use “infodrips” instead. Rather than just blurting out setting data in long multi-paragraph dialogue sections, you can deliver your exposition just a little at a time. A sentence here, a few words there, spread out across action scenes and great character moments. This technique helps keep your readers from feeling like they’re cramming for a pop quiz, and it can be effective–assuming it’s done with proper timing. Infodrips are fine in the first act of a story, and can be used sparingly in the second act. If you’re still delivering vital world-building information in the third act, your readers will (rightly) feel like you’ve been holding out on them. Oh, it turns out that the Sword of the Deathmuncher can only be destroyed by stabbing it into the heart of the Night Glacier? A fact which we don’t find out until the Swordruiner is actually on top of said glacier? Your readers will feel cheated. Additionally, infodripping can make your readers feel like you’re holding their hand as you cross the street. Like you don’t trust them to “get” your story unless you’re constantly explaining every little detail.
The best solution, in my experience, has been to avoid exposition wherever possible. Not by leaving everything obscure, but by grounding my stories to the maximum possible degree. Secondary worlds are wonderful places to get lost in, but by tying them closely to the real world, they become richer and they resonate better with the reader. The fewer things you need to explain, the more your readers will sink into the actual story. Cut back as much exposition as you can. If your character is carrying a Kandisian force-glaive, could you achieve the same effect by saying they’re holding a plain old halberd? Does your story need a High Hierophant of the Seven Tyronian Mysteries, or can you get away with calling them the Space Pope? Maybe you can’t! Maybe there’s a real difference, one super important to your plot. More often than not, however, you can easily use a simpler term or a more relatable concept to the same effect.
Look at your story, at what you’re trying to say with it, at what effect you want to achieve. Think about how to achieve that sense of mystery or emotional truth with more grounded ideas. If you do absolutely need to put something in your story that has to be explained in depth, that’s fine. But do you really need two such things? Three? High concept notions are fun, and can make your story stand out. Putting too many of them in one story, however, leaves you scrambling to explain how they work and how they interact–robbing you of time you could be spending on character arcs and building suspense. Infodumps are evil, kids! And the trick to fighting necessary evils is to isolate them and break them down into smaller problems, whenever possible.