Hello Alan,
The central prediction of Discrete Scale Relativity is the exact identity and the exact mass spectrum of the dark matter.
This is discussed many times throughout the website! Published papers in the "Selected Papers" section explicitly discuss the whole dark matter issue theoretically and empirically. I do not see how one could take more than a superficial look at the website and not see exactly what I predict for the galactic dark matter.
I also believe that the spiral arms and flat rotation curves of disk galaxies are the product primarily of frame-dragging by the central singluarity whose mass is many orders of magnitude greater than conventionally assumed. This conventional error results from using the wrong value of G for Galactic Scale systems. Only the combination of G and M can be measured for Galactic Scale objects. That is a fact that deserves more acknowledgement and attention.
Understanding nature takes real dedication and an effort that is objective, persistent and largely empirical.
RLO
Discrete Scale Relativity
http://www3.amherst.edu/~rloldershaw