I'm a layman interested in quantum mechanics and I have a few questions. I'm sorry if you receive these types of questions a lot but I can't seem to find the answers. My first question lies within the Copenhagen interpretation. In the Copenhagen interpretation, is non locality or counterfactual definiteness rejected? I would assume that non-locality is rejected because to my knowledge that within the confines of the Copenhagen interpretation particles do not have definite attributes until they're observed. My last question lies in entanglement. I think I may have a little trouble understanding exactly how counterfactual definiteness solves the correlations within entanglement. My current understanding is that the particles do not have definite attributes until measurement, however they must contain oppsite spins to preserve the conversation of angular momentum once measured. (Is this correct?) Anyways, the particles are intrinsically intertwined and the collapse of superposition between the particles is instant. This is where my confusion stems from , because this seems identical to non-locality, except that there are no hidden variables.