In the art world, “pentimento,” an alteration, an overlay on a painting, hides evidence of traces of a previous work. In a similar vein, British physicist Sir Roger Penrose argues that extinct universes exist that were filled with ghost black holes that are hidden, embedded in the Cosmic Microwave Background map, and may have harbored alien civilizations from an eon that preceded the Big Bang.
Penrose speculates that any civilization we may discover by definition will be millions to billions of years older than Earth.
Related article:
Dark Photons —”Existed in Eons Before the Big Bang”
Before the Big Bang -Vestiges of a Prior Universe?
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