Cause and Effect

Waiting on the Hyperspace Pizza NexusScience fiction isn't about causes. Cause is a "how," and ultimately, "how" is not important. Do we need to know exactly how the warp drive works? No. We just need to know what happens when it does. We need to know the effect: How will we react when the universe is open to us? Will we be humbled by the majesty of creation and become more enlightened beings? Will we push our edge in interstellar travel to build the Terran Empire? Will we use it to make faster pizza deliveries to Glornak 7?

Or telepathy. Does it really matter just how humanity develops this mental power? No. What's interesting is how the "normals" react to the espers...or whether the entire race becomes telepathic. Then what happens? Well, for one thing, speech pathology is no longer the go-to career for former actresses.

The importance of effects over causes is one of the big reasons to be wary of the "info dump" - the deep-seated urge to explain your entire world to the reader in one or two bloated, digressive paragraphs. Pay more attention to what happens next than what happened before.