You'd have to ask them...but, broadly...Krauss and Hawking have wildly divergent opinions on the matter..part of it due to each man's own opinion.. and another likely part of the demographics of their readership. Both men address concepts in the popular mind, concepts important or interesting to their readers. Hawking considers the subject line incoherent, and could be described as a non-cognitivist in this regard. Krauss considers the traditional concepts close enough for govt. work..and could be considered a compatibilist.
Neither man assigns credence to the baggage of nothing, and neither man is discussing what spacetime arose from. That would be the BB. Their comments surround the conditions prior to the bb...if it's a coherent notion...not after it. In neither mans explanation is spacetime anything other than a physical product of a physical event.
Neither man assigns credence to the baggage of nothing, and neither man is discussing what spacetime arose from. That would be the BB. Their comments surround the conditions prior to the bb...if it's a coherent notion...not after it. In neither mans explanation is spacetime anything other than a physical product of a physical event.
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