 However, this retrenchment may end up only shifting the Platonist worries elsewhere.  To distinguish the ways that are possible worlds (or possible world-states) from those which are not, it is difficult to avoid appealing to a gloss in terms of being possibly instantiated: the possible worlds are not only maximal but they could be instantiated. Taking this line would require conceding that in every world there are properties.  Something similar holds for the conception of possible worlds as maximal consistent states of affairs. 