Here's something, what it's worth I don't know.
Did you ever notice how what one is most likely to critisize another for is a behaviour they are most likely to exhibit? Of course, to put this in the third person is a bit counter-intuitive. The point is that we (or I) am most likely to place blame on another for doing exactly what we (I) would do.
I once heard a psychologist (name unknown) call this tendency the mirror effect. So, to me, trading in a mirror would mean taking an honest look at one's own trading behaviour. Self-assessment via active self-awareness you might say. Rather than analyze one's actions periodically (or in addition to), take an active role in self-awareness - on-the-fly, so to speak.
I also am aware and have utilized a more literal interpretation of 'x' in the mirror. Perfecting the mechanics of athletic motions (eg: a golf swing) via a mirror is an excellent approach. For, until you have attained a relatively high degree of mastery in any athletic motion you rarely have a feel for where your body is at any given point in time. A mirror allows you to witness in real-time exactly what you are doing, when you are doing it, at to what degree you are doing..."it" (my, my, what a superior word choice).
So there you go HarryT, I hope you can do something with this because I am not sure ET has Literary Brainstorm Forum.
-rlb
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