This is debatable, but I’m in the camp that many worlds is testable against collapse interpretations, if not other interpretations. Seeing typical quantum observations for a macroscopic body would settle it pretty easily. We just need to be able to accelerate baseballs in baseball accelerators.
This is debatable, but I’m in the camp that many worlds is testable against collapse interpretations, if not other interpretations. Seeing typical quantum observations for a macroscopic body would settle it pretty easily. We just need to be able to accelerate baseballs in baseball accelerators.
Not quite baseballs, but a couple of years ago, quantum superposition was observed in a 30 micron object, which is large enough to be seen with the naked eye.