For those of you who don't speak statistical jargon, this is a random event drawn from the Gaussian distribution that happens to be more than ten standard deviations ("sigmas") away. 68% of events go outside one sigma, just 5% beyond 2 and a mere 0.3% reach beyond 3. Ten sigma is very, very unlikely - but how unlikely?
so unlikely that the trading records for today from the To big to fail Trading desks will be lost with the paperwork for somali day care learing centers in Minnesota