A Universe from Nothing: Why There Is Something Rather than Nothing is a book by physicist Lawrence M. Krauss, first published in 2012, discussing modern cosmogony and its implications for the debate about the existence of God.
By Nothing, Lawrence Krauss means a Quantum Vacuum - not the philosophical meaning of nothing, which is 'not anything' - he certainly does not mean no physics.
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So, Why is there something rather than nothing?
Well, why not? Why expect nothing rather than something? No experiment could support the hypothesis ‘There is nothing’ because any observation obviously implies the existence of an observer.
Is there any a priori support for ‘There is nothing’? One might respond with a methodological principle that propels the empty world to the top of the agenda. For instance, many feel that whoever asserts the existence of something has the burden of proof. If an astronomer says there is water at the south pole of the Moon, then it is up to him to provide data in support of the lunar water. If we were not required to have evidence to back our existential claims, then a theorist who fully explained the phenomena with one set of things could gratuitously add an extra entity, say, a pebble outside our light cone. We recoil from such add-ons. To prevent the intrusion of superfluous entities, one might demand that metaphysicians start with the empty world and admit only those entities that have credentials. This is the entry requirement imposed by Rene Descartes. He clears everything out and then only lets back in what can be proved to exist.
Bio: Lawrence Maxwell Krauss (born May 27, 1954) is an American theoretical physicist and cosmologist who is Foundation Professor of the School of Earth and Space Exploration at Arizona State University and director of its Origins Project. He is known as an advocate of the public understanding of science, of public policy based on sound empirical data, of scientific skepticism and of science education and works to reduce the impact of superstition and religious dogma in pop culture. He is also the author of several bestselling books, including The Physics of Star Trek and A Universe from Nothing.
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