LIGO will apparently announce on February 11, the detection at five plus sigma of gravity waves (3 solar masses of energy worth in about 100 seconds) emitted as two medium sized black holes of about 65 solar masses combined spiral into each other and merge into a single Kerr (i.e. spinning) black hole. Apparently, the results are dead on to the GR prediction, which begs the question, what limits does this place on strong field modifications to GR predictions due to quantum gravity? It looks like any quantum gravity theory that predicts meaningful deviations from GR in this regime will now be ruled out experimentally. Is anyone familiar enough with QG phenomenology to make any meaningful statements about what theories will be casualties of this new data point? For example, are the energy scales involved in this event high enough that a running of the gravitational constant G with energy scale would be discernible relative to GR's predictions? Also, does it place any meaningful limitations on dark matter? It is hard to imagine that dark matter could manage to have absolutely no impact whatsoever on something like this, but on the other hand, this is taking place in an area of space smaller than Australia and the amount of dark matter in that region in the solar system would be miniscule because it is so diffuse.