B
Black Swan
You've missed the point here. Number 5 was not the solution. The solution was releasing the emotions connected with the event. The important issue is that we all have traumatic events from the past of which we have absolutely no conscious memory - and these screw up our current behaviour.
They are not things we can know about, by definition, because they are in the SUBconscious.
There is no placebo effect at work because something real took place, something was discovered. It would only be a placebo if the professional had merely suggested the underlying problem and a solution. In fact she suggested no solution, the body simply returned to normal because the stress has been released.
You would be amazed what events can be repressed in the subconscious and the person simply does not have the slightest clue about them! On a more subtle level, many people have been convinced in their childhood that they are 'no good' and will never succeed.
All this is extremely relevant to trading because those buried traumas and subtle suggestions we have do ruin our chances of success.
good post