Roger Penrose’s Conformal Cyclic Cosmology is a radical attempt to provide a comprehensive alternative to cosmology’s standard story where our universe, or aeon, is one of many in a successive chain each new universe is different from the last. However, philosopher of physics, Baptiste Le Bihan, presents a radically different perspective to Penrose's. He argues, each new universe in the cycle is not new, rather it is the same universe repeating itself. Our universe is on an infinite time-loop, with every ending it is re-born, and everything happens exactly the same; this offers theoretical weight to ancient, religious and Nietzschean ideas of the eternal return, with massive consequences for science, philosophy, and the way we live our lives.

Reality extends far beyond our universe, which is just one among many universes. This is the worldview of Roger Penrose’s conformal cyclic cosmology, an alternative to the standard model of cosmology.  According to conformal cyclic cosmology, our universe—or aeon as Penrose calls them in reference to the Roman god of (cyclic) time—belongs to a long chain of universes, ordered in time.