Will the world population reach 8.2 billion?
Basic
5
Ṁ359
2025
95%
chance

This market will resolve YES if and when each of the following three world population counters displays a number greater than 8.2 billion: Worldometer; Population.io; The world counts.

The resolution date for this market will shift based on market odds. It will move closer as the odds increase, and further into the future as the odds decrease. This will allow for an assessment of when the resolution event will occur. Initially, with 50% odds, the resolution date is set 50 years in the future. If the odds rise to 75%, the resolution date changes to 25 years in the future. At 80%, it changes to 10 years; at 90%, to 5 years; at 95%, to 1 year; at 96%, to 3 months; at 97%, to 1 month; at 98%, to 1 week and at 99% to 1 day in the future. I have a predefined list of resolution dates for each value between 1% and 99% odds and will adjust the resolution after each trade that changes the odds by at least 1%. 

The market will never resolve to NO, since there can be no proof that the world population will never reach 8.2 billion.

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resolution date is now 18 october 2025 at 95%

Resolution date is now 18 april 2034 at 81%

I have come to the conclusion that the set up for this market has to be changed, as it will not be possible to let the market alone decide on resolution. I’m changing the title, conclusion criteria and the way resolution dates shift similar to the approach in this market:

https://manifold.markets/OurWorldIntheFuture/will-atmospheric-co2-reach-426ppm

These changes will not affect the chances of bets that have been placed - since the chances for the world population to reach 8.2 billion remain the same.

Resolution date now 10 feb 2026 (480 days in the future) at 81%

bought Ṁ10 YES

Resolution date changed to 25 april 2027 (920 days in the future) at 72%

Resolution date changed to 22 october 2027 (1100 days in the future) at 69%

bought Ṁ14 YES

Resolution date changed to 20 march 2028 (1250 days in the future) at 66%

Resolution date changed to 1 Sept 2029 (1780 days in the future) at 61%.

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