Agreed, but you're missing my point which isn't about systems at all. :eek: A significant aspect of the activity of trading itself, regardless of model, method, framework, system, whatever you want to call it, is psychology, most notably fear. Letting a loser run, cutting a winner short because it feels so good to be finally in the black, failing to execute a planned entry, those are irrational and caused by fear (of loss, of being "wrong", whatever else). Douglas' Zone addresses that for newcomers. He reminds them that anything can always happen and provides advice to help build trust in their own plan. That's valuable.
I've seen plenty of posters on ET who'd benefit greatly from giving his Zone a (second?) read. (Like I always say, just skip the metaphysical 20% about "voodoo energies" where he clearly should have consulted anyone with a high school diploma before printing...)