Faster than light?

The news that scientists at the CERN research centre in Switzerland may have observed particles travelling at more than the speed of light raises some interesting possibilities.

While it's all very tentative and there may well be an explanation for why they appear to be doing something Einstein ruled impossible - such as taking a short cut through another dimension in space - it at least opens up the possibility of travelling backwards in time, and all the Star Trek-types dilemmas about the space-time continuum that would lead to.

It also reminds me of one of my favourite Muhammad Ali quotes about how he was so fast that when he turned the light off at night he was in bed before it was dark.