A Super-Universe?

Webb results imply to me that there is an overall “Super-Universe” of infinite size and infinite lifetime – and our particular Universe is just one of many (infinite maybe?) sitting within it. Little Universes (like our own) are popping up all the time within the infinite Super-Universe. So the question of what came before the Big Bang is not an unanswerable question – it is the Super-Universe. And the answer as to what lies beyond the boundary of our Universe is not nothing, once again it is the Super-Universe. Our Universe is not creating spacetime at its boundary as it expands, it is flowing into an already existing spacetime, the spacetime of the Super-Universe. I’m pretty sure this theory does not go against any cosmological observations. If it does – please let me know. The Super-Universe would therefore also be the Absolute Infinite or Ein Sof as discussed by Rudy Rucker in “Infinity and the Mind”.