“The landscape problem represents a serious problem in the development of science. Its solution requires… the construction of speculative cosmological scenarios, which posit regions or epochs of our universe for which we presently have no observable evidence. Nonetheless we must insist on taking seriously only scenarios and hypotheses that make falsifiable or strongly verifiable predictions, otherwise people can just make stuff up and the distinction between science and mythology becomes porous. …there are already candidate solutions that make real, falsifiable predictions.”

—  Lee Smolin

"A perspective on the landscape problem" arXiv (Feb 15, 2012)

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American cosmologist 1955

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“The hypothesis underlying all approaches to the landscape is that there is a cosmological setting in which different regions or epochs of the universe can have different effective laws. This implies the existence of spacetime regions not directly observable… These regions must either be in the past of our big bang, or far enough away from us to be causally unrelated.”

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