With a very deep theory, the recognition that it explains a given phenomenon may itself be a significant discovery requiring independent explanation.
Furthermore, it’s not obvious that new facts fit existing explanations. There is still work required to determine if a new fact can be understood with our best explanations. And Charlie Munger taught that one ought to do just that until you cannot do otherwise. Assume that new facts fit our best understanding, until it is clear it doesn’t. Then, a better, new explanation is required. This is the reason explanations need to be hard to vary. In fact, if an old explanation can be varied to fit the new fact, it might signal that the old explanation is not that good after all.
