• Question: is it possible for another universe to exist with different constants ( speed of light etc ) laws of physics? if so what do you think they could be.

    Asked by pewdiepie to Andy, Chris, Harriet, Nikki on 17 Mar 2016.
    • Photo: andy chapman

      andy chapman answered on 17 Mar 2016:

      Fantastic question. It is absolutely considered to be possible. It is called the multivesre theory and for many people this is actually the most sensible and simple version of reality, one based entirely on probability. If every single version of a universe exists, each one with its own version of the physical constants, then eventually you end up a universe like ours that has Planck’s constant of exactly 6.62607004 × 10-34 m^2kg/s. Maybe there is another one that has everything else the same but Planck’s constant is 6.62607005 × 10-34 m^2 kg/ s….and so on…

      Who better to explain this than Prof Cox:

      http://www.bbc.co.uk/news/science-environment-29321771

    • Photo: Christopher Blanford

      Christopher Blanford answered on 17 Mar 2016:

      Hey Pewdiepie

      Yeah, like Andy wrote, but it’s one of these bits of science that’s hard to test. It might be impossible. So, people sit around and work out whether it’s possible or not using maths and logic.

      Chris

    • Photo: Harriet Reid

      Harriet Reid answered on 17 Mar 2016:

      Hi
      Great question. I think it is posable but I don’t think that we could ever find out if a universe like that existed.

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