 One way to understand this is to think of Everett branches as an indexical akin to time. Just as one might have different incompatible physical states obtain at different times, here one might have different, incompatible physical states obtain at the same time but at different branches. Rather than account for determinate measurement records at a time, one denies that there typically is any simple matter of fact concerning what an observer’s measurement record is at a time. Insofar as there is a matter of fact concerning the value of a measurement record, it is a fact at a time and at a branch. On this proposal, one might propose a different branch indexical for each complete basis one might specify. But the complete set of relative facts at a time, the set of relative facts that one gets by considering every possible branch indexical at a time, does not require one to specify a preferred basis for the theory.