Question: What happened to Schrodingers cat?

Iain Bethune answered on 24 Jun 2015:

Fortunately, nothing – the cat was just a thought experiment. What the experiment says is that when the cat is in the box – the cat does not have a defined state (alive or dead), but can be thought of to have a superposition (or mixture) or both alive and dead states. When we open the box and observe the cat, we find it in either one of these states. This is one of the fundamental aspects of Quantun Mechanics, that objects have a wave function that is usually some combination of many possible states for the object, and we can only see which state it is in by observation (measurements). Whether the superposition state has some physical meaning or not is on ongoing paradox. So while the ‘meaning’ of Quantum Theory is not quite agreed, it is an excellent mathematically theory that makes real, testable (and so far correct) predictions about the world around us.