I said 'rigged', not 'unpredictable'.Of course it's rigged. The market isn't there for you to make money. Like any other market it is there for the people who run it to make money. You don't expect to be able to make money from any other retail business where someone is selling you something you think you want, why would you expect to make money from a business that sells you securities?
It's actually a good thing. If it wasn't rigged and volatility was really entirely random, there would be chaos.