>In the case of Evolution, and also Cosmology (the origin of the Universe) and Cosmogony (the origin of the Solar System), I would say that the general outline is there, but that certain details have to be figured out yet. In some cases, these can be important details, like (in Evolution) more details about the first step (from proteins to a cell is a much bigger step than from an amoeba to a human being), and (in Cosmology) what happened before the Big Bang, if there was a before.

Fun stuff to think about! Thanks!