Carroll postulates that all the necessary degrees of freedom are already just sitting there in hilbert space - it's only when the states become orthogonal to ea

Carroll postulates that all the necessary degrees of freedom are already just sitting there in hilbert space - it's only when the states become orthogonal to each other (e.g. "branching") that we no longer have access to them. https://www.youtube.com/watch?v=jHLfMXvQqX8 https://www.youtube.com/watch?v=jHLfMXvQqX8