“By 2070, at least six countries will have officially implemented a 4-day working week.”

Created by gwern on 2010-07-30; known on 2070-01-01

• gwern estimated 85% on 2010-07-30
• gwern said “http://www.longbets.org/78” on 2010-07-30
• themusicgod1 estimated 53% on 2016-10-06
• pranomostro estimated 90% on 2019-01-14
• account estimated 99% on 2023-01-16