“The vacua with positive cosmological constant trap the universe in eternal inflation. They decay only locally, by producing bubbles of new vacua. Thus, every vacuum in the landscape will be realized an infinite number of times in different, causally disconnected regions. Each bubble expands to become an infinite open universe embedded in the global spacetime.”

— Raphael Bousso

"Holographic probabilities in eternal inflation." Physical review letters 97, no. 19 (2006): 191302. arXiv preprint https://arxiv.org/abs/hep-th/0605263

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Raphael Bousso1

American physicist 1971

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