Global population is over 7.1 billion (Wikipedia)

Created by KnaveOfAllTrades on 2014-09-25; known on 2014-09-25; judged right by KnaveOfAllTrades on 2014-09-25.

• KnaveOfAllTrades estimated 68% on 2014-09-25
• KnaveOfAllTrades   judged this prediction right on 2014-09-25.