I was wondering
I'll preface this with the fact that my knowledge of quantum physics and relativity are both rather shaky, but I did have this thought:
Given the references to the Supernova, in which case the Neutrinos travelled 160k or so light years and arrived 3 hours before the light itself; and comparing with the OPERA experiment where the difference was relatively bigger (scaled up to 160k light years, the OPERA result would have meant the Neutrinos arriving about 4 years ahead of the light); I have to wonder if matter plays a part.
Hypothesis: Neutrinos are able to travel slightly faster than c through matter (whether by quantum tunnelling or some other method).
This would mean that the Neutrinos in OPERA would travel slightly faster than C for a significant part of their journey, whereas those from the supernova would travel faster than C for a very small part of their journey (as there's not a lot of matter in space - but there is a little space dust and the like). So then the effect would be more pronounced in OPERA than it was with the supernova - as observed.
I've put a post on my blog about it that lays it out perhaps a little more clearly (http://thoughtsonmorality.blogspot.com/2011/10/those-neutrinos.html)
Anyone know if this is possible, or measurable?