Comment by hcarnot

No, reality is not related to what we "focus" on. I don't subscribe to quantum observer anthropocentrism (which is also something that Wheeler fell prey to): an "observer" doesn't have to be conscious and doesn't have to be human. An observer is simply something in the universe whose state causally depends on some quantum phenomenon. For that thing to resolve its state, it needs to "measure" the outcome of the quantum phenomenon. That is all.