From 2020: A group of physicists including one of the architects of inflation have revived the idea of a cyclic, or “ekpyrotic,” universe — one that has no beginning and no end.
https://www.quantamagazine.org/big-bounce-simulations-challenge-the-big-bang-20200804/ https://twitter.com/QuantaMagazine/status/1467513848236290050/photo/1
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