Obviously any living creature can become entangled with the quantum experiment if you build the right apparatus. Build a machine that kills a cat if an atom decays, and you’ve made cats into quantum observers. When the cat observes the experiment by not dying, it collapses from the cat’s point of view. When you observe the cat, it collapses from your point of view.
Obviously any living creature can become entangled with the quantum experiment if you build the right apparatus. Build a machine that kills a cat if an atom decays, and you’ve made cats into quantum observers. When the cat observes the experiment by not dying, it collapses from the cat’s point of view. When you observe the cat, it collapses from your point of view.
If an interaction occurs it collapses for all points of view. The geiger counter is the observer.