Testing the Many-Worlds Interpretation

The Many Hidden Worlds of Quantum Mechanics – Season 1

Address another objection to the Many-Worlds Interpretation: its testability. This refers to philosopher Karl Popper's famous falsifiability criterion, which discounts any theory that can't in principle be proven false. The proliferation of worlds that can't ever be observed might seem to qualify Many-Worlds as unfalsifiable, but Professor Carroll shows that it is testable where it counts.