Comment by nu23

To me, 'hack' and 'unintuitive' carry different meanings. 'Hack' indicates some kind of ad-hoc patch to fix the model. Even if it fits the data, there could be a theoretical irregularity. I suspect that programmers experience this quite often when making a change that keeps the program working. Sure, it is possible that ultimately the hack is indeed how nature works, but its still worth exploring and making precise the nature of the irregularity.