I like Sean Carroll's suggestion: Austere Quantum Mechanics. Because many worlds is really just taking the state of quantum mechanics and accepting what we do know about it without added assumptions. There's a wave function, it obeys the Schrödinger equation.
Other interpretations always posit some extra stuff, like wave function collapse, or pilot waves. Many Worlds just takes the Schrödinger equation seriously on its own.
Therefore it is in a very real sense the most austere interpretation, even though it posits all those worlds.
Other interpretations always posit some extra stuff, like wave function collapse, or pilot waves. Many Worlds just takes the Schrödinger equation seriously on its own.
Therefore it is in a very real sense the most austere interpretation, even though it posits all those worlds.