It’s well established that when two electrons are entangled, no matter how far away they are moved, they “communicate” instantaneously. Change the spin of one, and the spin of the other instantly changes.
First question: How do we find two electrons that are entangled ?
Second question: If 'spin' is the determiner of entanglement, isn't there a 50/50 chance that any electron selected will match the spin of another ?
Third question: In determining whether electrons are entangled, we have to determine what 'spin' they have. Doing so causes them to change 'spin' (an assumption). How do we know it changes when we don't know what 'spin' it had until we try to determine what 'spin' it has ?