I've always found the Shroedinger's cat thought experiment to be idiotic. The cat will either be alive or dead. If it survived, it survived; our observation of the result does not affect or cause the result. If it died, then it died. Our observation of it's dead body didn't cause the death; it would be dead no matter if we observe it or not.
This is a very poor way to express quantum physics. Light can affect the speed and trajectory of quantum particles. It cannot affect the speed and trajectory of micro or macro sized objects.
Terry Pratchett wrote a lot of wise things hidden under his humour.
And what about the cat, does she not observe whether she is alive or not?
Not, if she is dead, I admit but surely this complicates the thought experiment which Schrodinger created to show the Copenhagen interpretation implies that the cat remains both alive and dead until the state has been observed. Schrödinger did not wish to promote the idea of dead-and-alive cats as a serious possibility; on the contrary, he intended the example to illustrate the absurdity of the existing view of quantum mechanics.*
So what is wrong with admitting that we don’t know?
*
https://en.wikipedia.org/wiki/Schrödinger's_cat#Origin_and_motivation