 On the standard sort of many-worlds theory, worlds are taken to split over time as new branches are produced in measurement-like interactions. One problem with this is that the forward-looking probability of an observer getting each quantum-mechanically possible outcome for a measurement is simply one inasmuch as each possible measurement outcome is in fact recorded by some future copy of the observer one of the post-measurement branches. One way to get the right forward-looking probabilities, the standard probabilistic predictions of quantum mechanics, is to postulate worlds that never branch. Such worlds might be characterized by their complete histories. If one is in such a world, then one simply experiences its history.