While this makes sense in quantum physics, it does not make sense in classical (real world) physics. Schrödinger wanted to show that this way of thinking about quantum mechanics would lead to absurd situations. He designed a thought experiment. A cat is placed in a room that is separated from the outside world.

Why Schrodinger's cat is wrong?

A Cat Without a State

Schrödinger was pointing out that if that particle were in a state of superposition, simultaneously decaying and not decaying as long as no one looked, the cat would be both dead and alive until someone opened the box. Schrödinger didn't buy it. He was wrong, though.

Is Schrodinger's cat correct?

"Schrodinger's Cat" was not a real experiment and therefore did not scientifically prove anything. Schrodinger's Cat is not even part of any scientific theory. Schrodinger's Cat was simply a teaching tool that Schrodinger used to illustrate how some people were misinterpreting quantum theory.