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Your main advantage as a writer is that you KNOW what is going to happen. Dumb example first to make a point I have an IQ of 100. I am writing someone who has IQ of 1000. He says "I am so smart I ...
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Source: https://writers.stackexchange.com/a/48719 License name: CC BY-SA 4.0 License URL: https://creativecommons.org/licenses/by-sa/4.0/
#2: Initial revision
Your main advantage as a writer is that you KNOW what is going to happen. Dumb example first to make a point I have an IQ of 100. I am writing someone who has IQ of 1000. He says "I am so smart I can predict a coin flip!" The coin is flipped. "Heads!" my character calls. The coin falls heads. There, I wrote someone so smart that he can predict coin flips at IQ 1000. Now you can also add some fluff. "I could tell by the way your muscles were tensing up, and because it was a 1968 quarter." In battle you can do the same thing, only often a coin is replaces by people minds. "I know that Bob the general grew up on the Baltic region where they prefer the five point pike formation." (quick Wikipedia search) "Pike formations are best countered by a phalanx unit, so I will send the phalanxs against Bob". And as no surprise, Bob does use too many pike units in his army and loses the battle. The idea is the same, I made a prediction bases on "smart people stuff", and the world acted as I predicted making my character smart.