Information density refers to putting more information into a single statement than is readily obvious. Think of it as a process of layering key pieces of a story on top of, or underneath, other things that are happening. Oftentimes it gets revealed through dialog, but there are other ways to accomplish it.
If you’ve been writing for any length of time, you’ve probably heard someone say, “Show, don’t tell.” In fact, you’ve probably heard it enough that it makes you want to strangle a manatee in the nude every time someone says it.
It’s a bit of cryptic phrase. This is, after all, writing we’re talking about, not cinema; showing stuff in prose seems like the antithesis of telling a story. I’ll admit, I struggled with getting my head wrapped around it. But, like all things, once you come at it sideways, it makes a bit more sense. The path to understanding was a long, strange trip, but I finally had an epiphany that made it click into place.
Supposedly, Anton Chekhov once wrote “Don’t tell me the moon is shining; show me the glint of light on broken glass”.
This is all about scene building and adding poetic license to the grim details of monkey knife fighting in dimly lit alleys surrounded by drunken, toothless rabble chanting broken prayers to empty gods. Imaging the scene in your head. Freeze the frame. See the guy with the eye patch and his fist raised in the air. He’s screaming, lost in the ecstasy of the moment while the woman in the tiny dress leaning on his arm is staring at her phone. She’s focused on a single text and smirking.
The monkey on the right is in the air, about to ram a narrow gleaming dagger into the skull of a gray and black beast with wide eyes and his arms crossed in front of his face.
Now, read between the lines and see what’s lurking in there. The guy with the eye patch bet on the monkey that’s about to kill. He’s happy because he’s gonna get some soda water money. His girl has someone else on the side, someone she’d rather be with. The monkey about to get stabbed knows exactly what’s about to happen because he’s done it to others before.
That’s information density. That’s showing not telling. In a nutshell, you don’t have to be explicit about every little thing. Let the reader make up their own mind about the detail. Give them just enough extra information beyond the scene taking place that they can fill in the details.
The first thing to understand about showing not telling is it doesn’t have to all-encompassing. There are plenty of places where simply saying, “The damned light was blue” is all it takes and there’s no hidden information you need to divulge beyond the blueness of the light.
So, how about some examples?
In 1986, Aliens was released. Some people will disagree, but I still think it was the best in the series and set the tone for everything that came after it. If you’ve ever read the novelization, one of the things that gets brought up is how the aliens are showing signs of growing intelligence, probably due to the age of the hive. In Alien, the critter wasn’t too bright. It was in pure survival mode and, of course, hopelessly outclassed its prey so it didn’t have to be too smart. In Aliens there was more at stake, there was a hive and a queen and relative safety and the aliens had the luxury of moving beyond pure survival.
Even though the movie never explicitly states this, it hints at it in two places. The first is the fact that aliens found a way around all the locked doors and security and generally showed they had an intellect beyond pure animal instinct.
The other place, and the one that should have stayed in the final cut, was more obvious. Unfortunately, you’ll have to scrounge up the director’s cut to see it. In that cut, there’s a scene where the marines set up automated sentry guns. The first gun runs out of ammo and the aliens overrun it with pure numbers. The second gun, however, stops firing before it runs out of ammo. The aliens recognized the threat and retreated to find another way around. That way turned out to be crawling through the ceiling and dropping on their unsuspecting prey. Clever bugs.
Again, information density. Even though both scenes moved the story along and were pretty damned fun to boot, there was another layer that wasn’t as obvious. Even though that layer didn’t necessarily serve to push the plot along, it added something important to the characterization of the antagonists and also ramped up the tension. Now the marines weren’t just fighting a horde of killing machines, they were fighting a horde of smart killing machines.
In the beginning of this post, I alluded to the fact that information density is often revealed through dialog. Imagine a character with a recurring drinking problem. He’s trying to get his shit together, but has a long and storied history with alcohol. At various points in the past, he’s gone so far into the arms of mother booze that he’s made up crazy stories. You could spend a paragraph or so detailing his many times on and off the wagon, or you could hit in one line.
“Are you back on the sauce again, Colton, because that story doesn’t make a lick of sense.”
Your readers are smart. They don’t need everything spelled out for them. Don’t just let their imaginations soar, encourage it.
Got any other tips, drop ’em in the comments. I love comments.