Any fudge factor with a continuous effect on the output that covers the range of interest can be used to adjust a given output to an output of choice. For dark

Any fudge factor with a continuous effect on the output that covers the range of interest can be used to adjust a given output to an output of choice. For dark matter, one of the problems is that any given instance is allowed to have whatever amount of dark matter gives the output we want. This makes the math work out great, but weakens its predictive power.