> I have no idea about this "credible work", but as a layman in the
> subject, the speed of light does seem to make the assumption that
> time is constant. Is it ?
> Wrap your mind around that one. :-)

No, it assumes that length is constant ;-) ;-).

As another layman, I think that the speed of light barrier is challenged
at the quantic level where you can have quanta that travel slower than
light, but very near it, and it can be shown that due to the incertitude
principle (Heisenberg) there is a certain probability that they go faster
than light at least for some of the time.

In general at the quantic level the speed of light is hard to 'quantify' I
think. I.e. how do you measure the seconds and the meters and what happens
when the incertitude principle is applied to the measurement near the
limit.

Along the same lines it may be possible to send photons at least beyond
the speed of light (I know how this sounds) by using a version of the
experiment that generates photon pairs with well controlled states so the
uncertainity principle can be 'violated' for the particle that was not
analyzed (and thus destroyed).

Peter

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