Well there's this ;
"After graduating with an honours degree from the University of Exeter in physics with geophysics, he spent two years working in oil exploration in the jungles of Papa New Guinea, living and working with local tribes and beginning to formulate personal theories on collective emotional behaviour. These have enabled him to develop a unique method of analyzing behavioural patterns in the markets. By his 30th birthday, Murrin wanted to be running his own business. In preparation, he spent the next seven and a half years at JPMorgan gathering skills in price prediction and modelling"
-----------------
I have no idea how good a trader he is, but quite a few of his geopolitical predictions have come true over the last 10 years, and as such I feel he certainly offers more than shouty attacking posts on Internet forums, at least.
Do you have any opinions yourself on the topic?
Have you ever worked 7 and a half years at JPM gathering skills in price prediction and modelling, by any chance?