From: Tony Williams 

Geo wrote:
> "John Beckett"  wrote in
> message news:fdsmp11df6ug205mnclm0ec0igth9b127o{at}4ax.com...
>
>
>> I'm a pragmatist, and I would say that since it is impossible to
>> know the precise initial conditions of any complex system, then the
>>  indeterminibility principle may very well be true.
>
>
> According to the laws of physics, matter cannot just wink in and out
> of existence like that.
>

Oh yes it can:

http://zebu.uoregon.edu/~imamura/209/apr14/virtual.html

[...]
> The existence of virtual pairs helps to explain a process known as
> pair production. The background is always seething with these pairs
> of particles. However, in order not to violate physical laws, the
> pairs always return back to the vacuum before they are observed
> directly.
>
> However, these virtual pairs can become real particles. It is found
> that when there are very high energy photons, that the energy of the
> photons can be channeled into the virtual pairs and the virtual
> particles can become real. This process is known as pair production.
> The collision and subsequent disappearance of a
> particle/anti-particle pair is known as annihilation. What this means
> is that if there is a large supply of high energy photons then
> particles can be created.

--
Tony

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