303 | AMA | February 2025

1292.962 - 1313.296 Sean Carroll

But in both of them, it is impossible for an actual observer in the actual universe to predict what is going to happen next. So it might depend on exactly what kind of Boltzmann—sorry, what kind of Laplace's demon you have in mind. Laplace's demon in Everett could predict the wave function of the entire universe, but there will be different observers observing different things.