Tom,
He is probably touting a 'mechanical' trading system (aka blackbox) which is basically a preprogrammed software package designed to filter stocks based upon a few criteria such as moving average, MACD etc. He probably says that the system has been backtested and has shown to be 100% successful but the major problem is that the markets move forward and not backwards.
I too was attracted by these systems during my first forays into trading but luckily I have stayed away from these and concentrated on learning (and still learning) to apply the technical analysis tools learnt from books such as 'Murphy' and 'Come into my trading room' . I have had success and failure but I have always learnt from my trades as I have had to make the decisions not the system.
I hope this helps but it is only my opinion and limited experience
James