“By 2010, more than 50 percent of books sold worldwide will be printed on demand at the point of sale in the form of library-quality paperbacks.”

Created by gwern on 2010-07-29; known on 2010-12-31; judged wrong by gwern on 2010-12-30.

• gwern estimated 2% on 2010-07-29
• gwern said “http://www.longbets.org/6” on 2010-07-29
• gwern said “I put this so low because it is way too late. Worldwide 50% is in the dozens of millions if not larger.” on 2010-07-29
• anonym estimated 1% on 2010-11-27
• gwern   judged this prediction wrong on 2010-12-30.