• Question: How Did Nothing Turn Into Something?

    Asked by ellalock to Arttu, Ceri, James_M, Monica, Philip on 18 Jun 2011. This question was also asked by sophiecorteville, jenniex, burry01, imaninja.
    • Photo: Arttu Rajantie

      Arttu Rajantie answered on 18 Jun 2011:


      We do not know. That is obviously a very important question, but it is not even clear what an answer to it could be like in principle. Anyway, there are still some theories about it, and they generally fall in one of two classes. Either they say that the universe has actually existed forever, in some other form, and therefore something has always existed. An alternative is to say that time is a property of our universe and therefore it makes no sense to talk about time before the universe came to existence. In a sense it would like asking what is north of the North Pole.

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