Bell's theorem debunks theories concerning local hidden variables. Many people interpret that as the complete absence of local hidden variables. Hidden variable theories were espoused by some physicists who argued that the state of a physical system, as formulated by quantum mechanics, does not give a complete description for the system. Entanglement entropy proves the presence of hidden variables in the 'correlation function'. Entanglement entropy is a measurement of quantum states (2 dimensional info) in entanglement. Doesn't this prove that Bell's theorem debunks only theories concerning local hidden variables? Entanglement entropy shows there are local hidden variables.