Idealism can be argued as following directly from the principle of parsimony - what is being the minimal ground for the experiencing and in a similar way the principle of parsimony can be seen to follow directly from idealism, in its grander cosmogonic sense. Thus the two are equivalent. There may also be an independent argument for parsimony: If positive being is not parsimonious then it consists of a parsimonious kernel, P plus some extra stuff, E, but P + E can be seen as parsimonious from a further perspective, that is from a deeper level of self: P + E = P', and so on. (E could be a 'forcing extension' of P containing uncountably many indiscernibles, but these are in fact discernible from a further position upstream of where P was taken to emanate from.) The point, however, is something else: that the existence of others, or alter-egos, is not adventitious but a direct consequence of there being anything at all. Perhaps even the apparently time-dependent number of such alters is a physical constant.