However, what is interesting to me about this is that the MOND-like galactic rotation curves drop out of the theory.
MOND itself didn't give any reason why gravity might behave differently. It was just a tweak that seemed to fit many observations. This theory seems to say that spacetime is inherently "wobbly", and this creates a difference from the classical picture in low acceleration regimes.
The paper acknowledges that there is much more indirect evidence for dark matter than just the galactic rotation curves, but it is still an interesting theoretical approach.
Comments
IANAC (I am not a cosmologist).
However, what is interesting to me about this is that the MOND-like galactic rotation curves drop out of the theory.
MOND itself didn't give any reason why gravity might behave differently. It was just a tweak that seemed to fit many observations. This theory seems to say that spacetime is inherently "wobbly", and this creates a difference from the classical picture in low acceleration regimes.
The paper acknowledges that there is much more indirect evidence for dark matter than just the galactic rotation curves, but it is still an interesting theoretical approach.