I think this is merely a terminological difference.<p>What happens is:<p>- before observing one particle, observations on the other particle are described and predicted by an entangled, superposition, state.<p>- after observing one particle, observations on the other particle are described and predicted by a non-entangled, non-superposition state. The possible outcomes of the observations on the other particle, both predicted and measured, are different after the observation on the first particle.<p>Of course the observation causes a change in the state of both particles simultaneously. And I understand that strictly speaking, in the physical sense of the word, there is no &#x27;action&#x27;. But does it really matter if people say they are &#x27;acting on&#x27; the remote particle by observing the local particle, as long as they mean the exact same thing?