While BURST is not the first computer code to simulate conditions during the first few minutes of cosmological evolution, it can achieve better precision by a few orders of magnitude compared to its predecessors.
The Universe's accelerators have been bombarding us with high energy particles, low energy particles and everything in between since the beginning of time. There are lots of ways we are looking at these particles with detectors on the earth and in the sky.
The recent news flash that researchers had observed a neutrino particle exceeding the speed of light did not excite the world much. If true, though, this bit of information should totally change physics as we know it.
CERN's reported violation of Einstein's theory most likely means the experimenters made a mistake. Most physicists like myself won't believe the result until every possible caveat has been investigated and/or the result is confirmed elsewhere.