Two physicists, Lawrence Krauss and Robert Scherrer, in a prize-winning essay on gravity, calculated that in the distant future, observers on any planet in the universe will be fundamentally unable to ascertain any of the universe’s important features.[15] In particular, it will become impossible for any physical sentient being living anywhere within the cosmos to determine whether the universe is expanding or has a beginning. Researchers won’t be able to learn anything about the origin of the elements or discover the existence of dark energy or map the temperature fluctuations in the cosmic
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