Conventional wisdom holds they are both representable merely as states of the world, although they have an complementary relationship
We want to update our belief state to match the world, want to update the world to match our belief state.
This picture is incomplete
Example: feel hungry, desire food.
It can’t be an accident that a bunch of seemingly related desires pop up (want a sandwich downstairs, want pasta from next door, …)
It doesn’t make sense that we desire things in a way that is not possible (want sandwich from Paris, from the moon)
Things make more sense when we break down the structure of a desire:
Object: sandwich from deli downstairs, sandwich
Aim: satisfy the hunger