LSD microdosing experiment: pair 11: placebo then active?

Created by gwern on 2013-01-16; known on 2013-01-15; judged wrong by gwern on 2013-01-16.

• gwern estimated 50% on 2013-01-16
• gwern on 2013-01-16
• gwern   judged this prediction wrong on 2013-01-16.