Zeo vitamin D morning: Week 7 &8: placebo then vitamin D

Created by gwern on 2012-04-27; known on 2012-04-28; judged right by gwern on 2012-04-28.

• gwern estimated 70% on 2012-04-27
• gwern said “the first week was really bad productivity wise, and second seems to be fairly decent. given that mood/productivity was why I looked into vitamin D in the first place, spring isn’t really here yet…” on 2012-04-27
• gwern said “yup! the mood really does seem to be a give-away” on 2012-04-28
• gwern   judged this prediction right on 2012-04-28.