'Groupon goes on a buying binge & hits $3B in gross sales.' in 2011 —Brian Breslin

Created by gwern on 2010-12-29; known on 2012-01-01; judged right by gwern on 2012-08-28.

• gwern estimated 40% on 2010-12-29
• gwern said “http://brianbreslin.com/2011-predictions/” on 2010-12-29
• gwern said “I feel like I first heard of groupon last week, so no idea. general pessimism operating here” on 2010-12-29
• gwern said “WP says 2011 estimated revenue 3-4B; marking right, since I have no idea about buying binge” on 2012-08-28
• gwern   judged this prediction right on 2012-08-28.