There is an hypothesis that Universe doesn’t really exist without an observer. An observer and an effect of its presence is the necessity which brings Universe from the possibility of being to actual being.
I direct my camera to observers. I don’t get close to them, I don’t want to disturb their observation process, I don’t want to catch their attention.
Our observation processes are simultaneous and parallel. Do we make the same universe while we watch each other observing? Is the camera an observer on its own?