The New York Stock Exchange is preparing to go non-human. Arnold Schwarzenegger is coming. The ability to execute trades without humans is really here. In reality, it can be 24 hours a day and highly efficient.
Our own computer is capable of managing a portfolio entirely automatically right down to sending in orders trading even every market in the world – SIMULTANEOUSLY. The real question is if all trading were to be replaced by computers, would there still be emotional panics?
Certainly if we replaced judges with computers then the law would be the law and the government would not have 99% conviction rates. That should be the next step.
http://www.shanghaidaily.com/nsp/Business/2013/03/11/NYSE+eyes+trade+without+traders/