Writting must have a core, something that is important. The story is only a display, what really important is sharing what you think with the world. No matter how interesting a plot is, without any theme the story is destined to failure, but a story with a central core and without any fascinating scene lead to a failure also. If there are so much requirements, why bother worry so much? After all the purpose of writing is to shout out loud what you think.
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