No terrorist attack causes >100 deaths in the developed world in 2017 (HDI > 0.8).

Created by technicalities on 2017-01-23; known on 2017-12-31; judged right by technicalities on 2018-01-03.

• technicalities estimated 80% on 2017-01-23
• themusicgod1 estimated 53% on 2017-01-24
• PseudonymousUser estimated 30% on 2017-08-23
• technicalities said “Worst in US: Las Vegas, 1 Oct 2017: 57 deaths Worst in Europe: 22 in Barcelona. https://en.wikipedia.org/wiki/2017_Barcelona_attacks Egypt is close https://en.wikipedia.org/wiki/List_of_terrorist_incidents_in_2017” on 2018-01-03
• technicalities   judged this prediction right on 2018-01-03.