I have no background in quantum physics (or any physics really) its just a topic I find really interesting. I watched a video on schrodinger's cat and am struggling to understand the cat being in a state of superposition. In the thought experiment I saw there was an radioactive atom with a half life of one hour in a box with a geiger counter connected to some poison. And of course the cat. It was explained that statically there was a 50/50 chance the atom would decay but of course according to the Copenhagen interoperation it was until you opened the box that you would find out if the cat was alive or dead and until the point the cat existed in both states. What I was wondering is why couldn't they just put a timer on the Geiger counter, which started the moment the experiment was started. Once the lid was lifted, say 90 minutes after the start of the experiment, and if the cat was found dead, then they could have just checked the time counter to see when the atom decayed. If it was say after 60 minutes then doesn't that sort of suggest that cat didn't exist in both states before the box was opened? Or am I missing something?