Maybe I should change the name of this blog to Death of a Trader. According to this Reuters article, most traders will be gone by 2015, replaced by powerful algorithms and other black box trading systems. The so-called algo-wars are raging between hedge-funds hungry for an edge.....blah blah blah. I mean, read the article, it's interesting as a sentiment indicator.
In the final analysis, you still need a trader (at least one) to program those machines. Also, in a panic situation, you can bet that those "algos" will be overridden. Human emotion will never be completely eliminated from trading, nor would it be advisable that it be so.