“There's a loophole if you weigh galaxies and clusters because you're weighing the total amount of energy around galaxies. What if there's energy where galaxies aren't? What is where galaxies aren't? Nothing.”

—  Lawrence M. Krauss , book A Universe from Nothing

"Lawrence Krauss: A Universe from Nothing" (2031)
Source: 23:32 https://www.youtube.com/watch?v=46sKeycH3bE&t=1412s

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Lawrence M. Krauss 21
American physicist 1954

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