[found on io9.com; by CHARLIE JANE ANDERS]
“World-building should be quick and merciless.
In a novel, you can spend ten pages explaining how the 29th Galactic Congress established a Peacekeeping Force to regulate the use of interstitial jumpgates, and this Peacekeeping Force evolved over the course of a century to include A.I.s in its command structure, etc. etc.
In a short story, you really need to hang your scenery as fast as possible. My friend and mentor d.g.k. goldberg always cited the Heinlein line: “The door dilated,” which tells you a lot about the surroundings in three words. Little oblique references to stuff your characters take for granted can go a long way.
Make us believe there’s a world beyond your characters’ surroundings.
Even though you can’t spend tons of time on world-building, you have to include enough little touches to make us believe there’s stuff we’re not seeing. It’s like the difference between the fake house-fronts in a cowboy movie and actual houses. We should glimpse little bits of your universe, that don’t necessarily relate to your characters’ obsessions.”
For more writing tips from Charlie Jane Anders, click here.