Tchaikovsky was a known drug addict.

Created by Leo on 2012-02-20; known on 2012-02-20; judged wrong by Leo on 2012-02-20.

• Leo estimated 40% on 2012-02-20
• Leo   judged this prediction wrong on 2012-02-20.
• Jayson Virissimo said “Maybe someone should make a RetrodictionBook.” on 2012-02-20
• Anubhav said “Or just a retrodiction category. As soon as we have categories, I mean.” on 2012-02-20