– Suppose we think of possible worlds (PW) as God’s knowledge of his potential creative acts.
– PW are then real – they really may have been. There is real possibility.
– They are not, however, concrete – this isn’t a divinely inspired David Lewis scheme.
– This account of modality is built on a notion of God’s freedom – and hence, modality is built-in to the world, as it were.
– A challenge may come from divine simplicity – how can we avoid a composition of thought in God on this account? An answer comes from Aquinas (I’m paraphrasing here): God knows/understands thru his nature, which is simple – there is no composition in God on account of his knowledge/understanding.
– Perhaps we could tie this in to an account of God’s self-knowledge.