To think that the observer should somehow not affect the measurement is the dualist position. From a materialist point of view the problem disappears because t

To think that the observer should somehow not affect the measurement is the dualist position. From a materialist point of view the problem disappears because there is no mysterious mind of the observer that exists outside of reality. So then even the observation is just a physical event, that can have effects on other physical things. Mind you, a little twist to this is that (space)time also arises from the interactions of the basic particles, so to think that these interactions are somehow bound in time or space as we know it leads you off track quickly. To illustrate: There are two balls: one is black and one is white. You are given one of the balls in a a closed box. When you open the box, and see the color of your ball, you will instantly know the color of the other ball, even though nobody actually told you what the color of the other ball is.