I'm studying electron spin/magnetic field and I was taught electrons can have only 2 spin orientations, as seen in the Stern and Gerlach experiment. But this orientations are given in relation to what? Do all electrons in the universe have the only 2 same orientations, or only the electron in the same sample? I mean, let's use the right hand rule to find the spin orientation of the electrons in the silver blade of Stern and Gerlach. Let's say my thumb line passes through Saturn, so it means all electrons in the sample will have the spins pointed to Saturn (in both senses of course). But this means that ALL the electrons in Earth have spins pointed to Saturn too?