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17 comments
145 forecasters

Will the US conduct a nuclear test explosion before 2030?

8.5%chance
2.5% this week
10 comments
3 forecasters

What will be the total awarded grand-prize sum for XPRIZE Healthspan?

$052.4%
$61 million – 10 Year Functional Improvement18.8%
$71 million – 15 Year Functional Improvement14.9%
2 comments
95 forecasters

Will evidence of alien technology be recovered near the IM1 crash site before 2026?

0.1%chance
3 comments
10 forecasters

How large will the global market for perovskite solar cells be (in millions of dollars) in 2030?

Current estimate
6867 $M
9 comments
32 forecasters

Will humans be able to communicate via telepathy before 2050?

60%chance
10% this week
9 comments
25 forecasters

Will >1% of global primary aluminum be produced by carbon-free technology before 2030?

43.2%chance
9.9% this week
0 comments
48 forecasters

By 2100, will 2 national space agencies conclude that an interstellar object in our solar system has a non-human artificial origin?

1%chance
1 comment
23 forecasters

Before January 1, 2030 will any public or private space company announce plans to reach "Oumuamua"?

1%chance
2 comments
12 forecasters

When will pig-to-human xenotransplantation become a routine medical procedure?

Current estimate
Dec 2043
5 comments
60 forecasters

Will there be a US-China war before 2050?

15%chance