ben will do the first floor of the opt model.

Created by puya on 2011-04-17; known on 2011-04-22; judged wrong by Ben Doherty on 2011-05-05.

• puya estimated 90% on 2011-04-17
• DavidPercival estimated 2% on 2011-04-19
• Ben Doherty   judged this prediction wrong on 2011-05-05.