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>Too much direct explanation gets in the way: http://en.wikipedia.org/wiki/Show,_don%27t_tell

That's often the biggest challenge in writing good fiction. It's the difference between good flow and "signaling". In college I wanted to be a writer, and in 1993 actually produced over 200 pages towards a novel that's been in my head for decades. That was always the biggest challenge for me - how to avoid signaling.