"They are by their very nature impossible to predict and trying to is a fools game and no basis for a rational business decision." Really?????

They are impossible to predict but a response to them meaning emergency tactics and preparation are in the kit of any real pro. They have to be. The events are unpredictable but the responses are relatively limited within the human equation. Your response indicates that you have not made these types of practices a part of a smart business approach. I have steps and tactics from some pretty renowned individuals that train traders and this is one of the things they talk about. Some people even refuse to use something as simple as stops and when a big hit takes place they get wiped out. When properly set people rarely lose out on a sudden reversal. That's just one tiny little thought for the tool box of protecting oneself or placing all of the eggs in one basket. See any basis for a rational decision now? Check the market, there is little in the way of rational thinking going on there and a lot of people will get burned beyond recognition.