I just read an article (linked below) today and found it to be quite curious and interesting. In short, physicists have taken Schrödinger's cat paradox to a whole new level by adding a second box. I’m still very new to all the ideas of quantum physics, but apparently this addition of another box adds the concept of entanglement to Schrödinger's thought experiment. From what I understand (and please correct me if I’m wrong) entangled particles are completely dependent in each other so that the the state of one particle determines the state of another. Applying this to Schrödinger's paradox, this means that the cat is either alive or dead in both boxes at the same time. Now for my question: Can more boxes be added? Does quantum physics allow for there to more than two boxes? Can the thought experiment work with three boxes? Four? Five? Apologies if this is an obvious question; I don’t know much about this topic.