I just suppose the Bell's Ansatz for the result of measurement to be $$A (\theta,\lambda) $$ Now the parameter lambda could be anything : -a physical quantity like the polarization angle of the incoming photon -the coordinate of a 'world' - the whole wavefunction. ... In the case of the wavefunction Bell's result is obtained and QM violates the inequalities even with this argument. Does this mean that the wavefunction cannot be apprehended by the measurement apparatus A ? Hence that it cannot be a measurable element of reality ?