 Information received a modal treatment in the classic Bar-Hillel and Carnap (1952) account. The informative task of a sentence \(A\) is to split the totality of worlds into those where \(A\) is true and those where it isn’t. An agent’s becoming informed of \(A\) is its ruling out the not\(-A\) worlds as contenders for actuality: before being informed that it’s raining outside, for all you knew, it might have been raining or not. After you are informed, you can rule out all the non-rainy worlds.