&gt;the observer affecting the universe in an unknown way.<p>there is no pure &quot;observation&quot; in QM like the one we can imagine in classical case. Any observation in QM is actually an interaction. While i&#x27;m not a fan of Copenhagen, there is nothing un-materialistic that an interaction with the system affects its state, like a coin balancing on its edge finally would finally fall on one side upon you touching it.