“Between 50% and 80% of them will be city-dwellers, and their average age will be rising.”

Created by gwern on 2012-01-14; known on 2092-01-01

• gwern estimated 40% on 2012-01-14
• gwern said “http://www.antipope.org/charlie/blog-static/2012/01/world-building-301-some-projec.html” on 2012-01-14
• lavalamp estimated 40% and said “(adjusting downwards on account of the conjuction)” on 2012-01-20
• themusicgod1 estimated 27% on 2016-10-09
• pranomostro estimated 20% and said “What themusicgod1 said.” on 2018-12-19