Does not CCC point to infinite universes?

Mass-energy conservation isn't strictly maintained across the boundary between aeons in Penrose's Conformal Cyclic Cosmology (CCC). The theory requires that all massive particles, like protons and electrons, eventually decay or lose their mass in the infinitely expanding future of an aeon. This is because massive particles introduce a scale to the universe, and for the conformal transformation to occur, the universe must become scale-invariant, which only happens with massless particles like photons.

The mass from one aeon is essentially "lost" as it decays into massless energy, which then becomes the starting point for the next aeon. This means that while a form of energy is conserved, the conservation of mass is not. This process is a major point of contention and a key speculative aspect of CCC.

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CCC and Infinite Universes

Conformal Cyclic Cosmology does not propose the existence of multiple, co-existing "infinite universes" in the way that multiverse theories do. Instead, it describes an infinite sequence of single universes (or "aeons"), one following the other.

In CCC, the universe isn't a single, unique event but rather one link in an endless chain of cycles. Each aeon expands to infinity, but its infinite future state becomes the Big Bang of the next aeon through a mathematical "conformal rescaling." So, it's not a multiverse, but a single, cyclical existence that repeats eternally.

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Watch this video to learn more about the theory and its key concepts, including how it handles the fate of massive particles. An Eternal Cyclic Universe