Gravity News

Will we know if gravity is fundamentally quantum by the end of 2030?

Jan 1, 2:43 PMJan 1, 5:59 AM

11.59%chance

515213

OptionVotes

YES

1640

848

Is gravity fundamentally quantum?

Jan 2, 8:52 PMJan 1, 5:59 AM

84.41%chance

372835

OptionVotes

YES

1899

719

When will human-scale centrifugal artificial gravity be first tested in space?

Feb 26, 12:55 PMFeb 1, 10:59 PM

352686

OptionProbability

Before 2036

Before 2038

Before 2034

Before 2032

Before 2030

Before 2028

Before 2026

Will any space station have artificial gravity before 2031?

May 10, 11:41 AMDec 31, 11:59 PM

25.05%chance

361831

OptionVotes

YES

1411

808

Will artificial gravity be generated by spinning in space before 2030?

Jun 3, 12:59 PMJan 1, 9:59 PM

29.59%chance

331290

OptionVotes

YES

1006

945

What's the status of singularity in the correct theory of quantum gravity (if there is any)

Aug 6, 12:56 AMAug 7, 12:42 AM

71222

OptionProbability

The universe obeys the "DeWitt boundary condition" which requires the wavefunctions to vanish at singularities.

(Some) singular solutions are replaced by non-singular bouncing solutions.

(Some) singular solutions are replaced by singular bouncing solutions.

(Some) singularities are resolved by wormholes/topology changes.

Singularities prevented by general relativistic time dilation approaching infinity

Modified gravitational action (as opposed to Einstein-Hilbert action) prevents singular solutions.

Spacetime is fundamentally discrete, and the discrete structure does not contain singularity.

There is no correct theory of quantum gravity (e.g., gravity is not subject to quantum mechanics).

Will Oppenheim's unified theory of gravity and quantum mechanics pass the test?

Dec 5, 11:40 AMDec 31, 10:59 PM

41.6%chance

10326

OptionVotes

YES

169

Will Jonathan Oppenheim win his bet that gravity isn't quantized?

Jul 12, 8:34 PMDec 31, 11:00 PM

20.19%chance

9190

OptionVotes

YES

217

118

Will a unified theory of Quantum Gravity usurp the Standard Model before 2045?

Aug 1, 11:21 PMDec 31, 11:59 PM

56.88%chance

11188

OptionVotes

YES

121

Which approach(es) will lead to a viable theory of quantum gravity?

Aug 3, 1:12 AMAug 3, 1:09 AM

2140

OptionProbability

Gravitational path integral of metric field

Gravitational path integral of gauge variables (e.g., spinfoam models)

Causal set

AdS/CFT

Canonical loop quantum gravity

Quantum geometrodynamics

Gravity is not subject quantum mechanics

Who will launch the first crewed space station with functioning artificial gravity (via rotation)?

Jul 19, 5:15 PMDec 31, 11:59 PM

673

OptionProbability

Chinese state or private enterprise

No artificial-gravity station launched by resolution date

US Company and/or NASA

European company or agency

Russian company or Roscosmos

Other

Is loop quantum gravity dead?

Sep 12, 10:21 PMSep 12, 10:18 PM

49.51%chance

330

OptionVotes

YES

1001

999

Gravity News

Prediction markets for Gravity

Prediction markets for Gravity

Prediction markets for Gravity

Will we know if gravity is fundamentally quantum by the end of 2030?

Is gravity fundamentally quantum?

When will human-scale centrifugal artificial gravity be first tested in space?

Will any space station have artificial gravity before 2031?

Will artificial gravity be generated by spinning in space before 2030?

What's the status of singularity in the correct theory of quantum gravity (if there is any)

Will Oppenheim's unified theory of gravity and quantum mechanics pass the test?

Will Jonathan Oppenheim win his bet that gravity isn't quantized?

Will a unified theory of Quantum Gravity usurp the Standard Model before 2045?

Which approach(es) will lead to a viable theory of quantum gravity?

Who will launch the first crewed space station with functioning artificial gravity (via rotation)?

Is loop quantum gravity dead?

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