Part 4/8:
Historically, attempts to resolve this dilemma have led physicists to consider decoherence—a process that relates to the loss of coherence in quantum states due to environmental interactions. Decoherence explains how quantum behaviors interact with the environment (such as molecules in the air or photons), affecting the states we can measure.
However, the crux of the issue lies in the fact that decoherence does not definitively eliminate the possibility of states where the cat could be both dead and alive. It merely shifts the focus onto the environment itself and why the cat exists as it does in a specific state, leaving physicists with no concrete answers. This overlooked nuance continues to fuel debates among quantum theorists.