Causal News

YES

Pilot Action: Pilot action was a primary cause of the crash.

Design/Manufacturing Defect: A Boeing design or manufacturing defect was a primary cause of the crash.

YES

YES

YES

Other

No opinion

String Theory/M-Theory (replacing point particles with extended objects in higher dimensions)

Loop Quantum Gravity (quantizing areas and volumes in spacetime)

Hořava–Lifshitz Gravity (breaking speed of light limit at high energies)

Asymptotic Safety (spacetime becomes a fractal on small scales)

Causal Sets (Discrete spacetime atoms, only connected by causal relations)

Causal Dynamical Triangulations (gluing triangulated space in layers of time)

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

YES

YES

YES

Causality can't be violated, even in principle

Special relativity is falsified.

It cites Hartle (1992) "Spacetime quantum mechanics and the quantum mechanics of spacetime".

It acknowledges that the path integral formalism allows the accommodation of indefinite causal structure for quantum gravity.

It presents the "process matrix formalism" as a promising framework for studying indefinite causal structure for quantum gravity (whether or not this is the case).