22 comments
215 forecasters
Will there be a city on Earth with a population of over 100 million by 2100?
54%chance
The community sees this as a toss-up.
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Authors:
Opened:Jul 11, 2018
Closes:Dec 31, 2099
Scheduled resolution:Jan 1, 2100
Spot Scoring Time:Jul 13, 2018
Will any modern artificial island reach a population of 1,000,000 or more inhabitants before 2100?
50% chance
10
Will one government govern 80% of Earth's population and economy by 2100?
7% chance
147
Will human population size recover to 5 billion by 3000CE if, by 2100, the population falls below 400 million without extinction occurring within 20 years?
75% chance
28