on Fiction University:
Some writers weave clues so seamlessly into a novel, we never even realize they’re there until they all converge in the end.
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Sometimes, it takes the sharp eyes of my critique group to spot the “clever things” I’ve written that I’m totally unaware of (grin).
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I suspect your subconscious does this, too.
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It’s only natural. Stories churn in our heads even when we aren’t consciously thinking about them. Our brains remember throwaway details and build on them without our input.
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And when we make the connections, we get that rush and think, “oooo that is soooo cool.”