There are no splits. The world state is and always was a complex-valued distribution, and it continuously evolves. Some parts of these distributions, through non-linearity, entropy and decoherence, can be described as “branches”, but they’re never really separated and they continue to causally affect each other.
Decoherence means that their average effects on each other are near zero, and entropy means that this is for all practical purposes irreversible, but this should not be confused with having created a new universe. It’s all still the same one, merely viewed from narrower points of view.
There are no splits. The world state is and always was a complex-valued distribution, and it continuously evolves. Some parts of these distributions, through non-linearity, entropy and decoherence, can be described as “branches”, but they’re never really separated and they continue to causally affect each other.
Decoherence means that their average effects on each other are near zero, and entropy means that this is for all practical purposes irreversible, but this should not be confused with having created a new universe. It’s all still the same one, merely viewed from narrower points of view.
Meaning that there are splits for all practical purposes.