Didn't Richard Dennis prove three decades ago when he won his bet with Wm Eckhardt that ordinary people (aka non-traders) could trade successfully by following a logical and proven methodology? Attitude, smattitude, if you have a winning system it could theoretically be taught to a monkey and he would make more money than his cousin throwing darts at the newspaper financial pages. Let's be honest: winning trading systems are rare these days and consistently winning systems are rarer than hen's teeth. So it's easy to blame attitude when the real issue is an inadequate trading system.