Even if there is a wormhole or some crazy sci-fi thing we haven’t thought of, there are a million trillion stars. Basically invisible. Unless you suggest some technology appears that allows an entity to travel to every star and observe it for billions of years. I’d love to hear a sci-fi proposal that covers this without invoking omniscient gods or the supernatural.
Multidimensional beings that transcend time and/or space. Not necessarily dieties, but it kind of is from our perspective.
Another night be that consciousness exists at many physical levels. Just like you are made of trillions of automata of cells and bacteria, which are played out by proteins and DNA, maybe the universe is a single consciousness, and we are but one part. Or a part of a part.