HP MoR: Harry will invent some form of 'metamagic' (eg. a self-replicating spell or magical construct/artifact)

Created by gwern on 2012-04-07; known on 2016-01-01; judged wrong by gwern on 2016-01-01.

• gwern estimated 50% on 2012-04-07
• Anubhav estimated 20% on 2012-04-10
• Futschi estimated 10% and said “Assuming the story only covers his first year in Hogwarts :)” on 2012-04-14
• PlacidPlatypus estimated 30% on 2012-04-19
• Oscar_Cunningham estimated 10% on 2012-04-20
• gwern changed the deadline from “on 2015-01-01” on 2015-01-01
• gwern   judged this prediction wrong on 2016-01-01.