Bill, Thanks for raising this. It is something I was unaware of, and am not up to speaking to. From internet chatter about their presentation, I understand the CERN scientists made a reference to tunneling. http://en.wikipedia.org/wiki/Quantum_tunnelling http://en.wikipedia.org/wiki/Faster-than-light http://www.aei.mpg.de/~mpoessel/Physik/FTL/tunnelingftl.html My own preliminary Oczam's Razor question about their presentation is how the CERN scientists compensated for the known faster-then-light effect associated with the refractive index (which I also posted about upthread) when light passes through a solid substance. They passed their signal through the Earth's crust, which is composed of many different materials. How did the CERN researchers compensate for the unknown composition of materials? That would be a simple Oczam's Razor explanation for their results. - Clear Skies, Kurt P.S. - For other readers. If I understand this correctly, quantum tunneling means that under Heisenberg uncertainty principle, a small number of particles in any interaction will violate classical rules of mechanics. Thus, light or radiation can be shot at a thick wall and by classical mechanics, all the particles should reflect off the wall. But under the uncertainty principle, a very small number of particles will violate classical mechanics and will pass through the wall. Extending this uncertainty idea by analogy to Einstein's light barrier and the assumption of normal space-time, all particles should not exceed c when transiting a vacum of normal space, but under quantum tunneling, a small number of light particles might violate the natural laws of physics for ordinary space and arrive early. One hypothetical method by which particles would circumvent those natural laws would be to transit another dimension. P.P.S. - Which is an example of cosmology and quantum physics gives me a headache and I try to stick with observation astronomy!