Well, for Schroedinger's cat, it's hypothesis 1. For quantum systems, hypothesis 2 has some evidence behind it.
But you can't translate the quantum stuff to the cat, because the detector makes a measurement. So because of the detector, the uncertainty is gone, and there's no uncertainty in the state of the radioactive atoms, let alone in the cat.
But you can't translate the quantum stuff to the cat, because the detector makes a measurement. So because of the detector, the uncertainty is gone, and there's no uncertainty in the state of the radioactive atoms, let alone in the cat.