How significant was Schrodinger's cat to the development of quantum physics?

Answer 1

Pretty Significant. There was a theory that explains that, due to superposition, the cat is both alive and dead (since we don't know yet because we can't observe it). The experiment of Schrodinger's cat will be explained at the bottom of the answer. So, Schrodinger did an experiment to show that the cat is either alive or dead. But, at a quantum level, the cat is both alive and dead at the same time, until the measurement is taken (or when we open the box, again the experiment will be explained at the bottom of the post in case you don't know). This was an attempt to prove superposition wrong, and it failed. It was all about There being two worlds, one where the cat is alive and one where the cat is dead, and which world you access. Sorry if this is a little jumping around. It's not like i made a plan for this. The layout of Schrodinger's cat is kind of confusing, just like the rest of Quantum Physics =) . In a steel cage, there is a radioactive item, a switch, a bottle of poison, and a cat. There is a 50/50 chance of the radioactive item giving off radioactive material. If it does, the switch is flipped and the bottle of poison is broken and the cat dies. So, it's totally up to randomness if the cat dies. So, from a certain perspective, there is two worlds; one where the cat lives, and one where the cat dies. It's just a matter of which world you access when you take the measurement. I hope that answered your question. Sorry if that was a little confusing.