Ohhh exciting, I have not heard of that before, cheers Simon.
On 14 Sep, 13:43, Simon Ewins <[email protected]> wrote:
> 2009/9/14 [email protected] <[email protected]>:
>
> > Yet that fails to answer my initial query. Before the big bang, what
> > substance was there for energy to exist in?
>
> It is called a quantum vacuum, or space-time foam.
>
> The space-time foam that gives rise to universes is infinite in both
> space and time. It has always been. It is what many call 'nothing' but
> in actuality there is no 'nothing'. The energy in the space-time foam
> comes from the curvature. This curvature creates less-than proton
> sized bulges in the foam. Once a bulge starts it only takes 10^-42 of
> our seconds to turn into a proton-sized bubble and break free of the
> foam. The bubble then begins a rapid expansion and that is where the
> 'big bang' begins.
>
> To make this clearer, imagine that you have a pot of boiling water on
> the stove, look down into it and you will see all these tiny little
> bulges on the bottom that break free, turn into bubbles and expand as
> they rise to the surface.
>
> That is analogous to how universes are created. Millions of universes
> are created constantly from this foam. Some are failures and disappear
> shortly after breaking free. Some are successful and begin expanding
> and creating elements and chemicals and some end up like ours, capable
> of developing carbon life forms that evolve and develop as we have.
> These universes eventually run out of expansion, grow cold and dead
> and decay, their constituents rejoining the curvature of space-time
> called 'nothing'.
>
> So, that is it in a nutshell. Just an eternal, infinite, curved
> 'nothing' spitting out universes like there is no tomorrow.
>
> This not conjecture, all of it can be derived from Einstein's
> equations written in 1916!! There is experimental evidence of ex
> nihilo spontaneous creation of virtual particles. This is becoming the
> dominant view of physicists from Hawking to Penrose and Stenger.
>
> In general relativity, spacetime can be empty of matter or radiation
> and still contain energy stored in its curvature. Uncaused, random
> quantum fluctuations in a flat, empty, featureless spacetime can
> produce local regions with positive or negative curvature. This is
> called the "spacetime foam" and the regions are called "bubbles of
> false vacuum."
>
> As the bubble universe expands, a kind of friction occurs in which
> energy is converted into particles. The temperature then drops and a
> series of spontaneous symmetry breaking processes occurs, as in a
> magnet cooled below the Curie point and an essentially random
> structure of the particles and forces appears. Inflation stops and we
> move into the more familiar big bang.
>
> To Quote Dr. V. Stenger:
> "The forces and particles that appear are more-or-less random,
> governed only by symmetry principles (like the conservation principles
> of energy and momentum) that are also not the product of design but
> exactly what one has in the absence of design.
>
> The so-called "anthropic coincidences," in which the particles and
> forces of physics seem to be "fine-tuned" for the production of
> Carbon-based life are explained by the fact that the spacetime foam
> has an infinite number of universes popping off, each different. We
> just happen to be in the one where the forces and particles lent
> themselves to the generation of carbon and other atoms with the
> complexity necessary to evolve living and thinking organisms."
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