Resumen de The puzzle of the changing past

Luca Barlassina, Fabio Del Prete

• If you utter sentence (1) �Obama was born in 1961� now, you say something true about the past. Since the past will always be such that the year 1961 has the property of being a time in which Obama was born, it seems impossible that (1) could ever be false in a future context of utterance. We shall consider the case of a sentence about the past exactly like (1), but which was true when uttered a few years ago and is no longer true now. On this basis, we shall conclude that the past has changed.