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Originally posted by waxwing If you have no idea what the system is really doing, then you'll always be fighting your emotions because you'll never have confidence that the market's character hasn't changed today and turned the system into a loser - in a totally opaque way.
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Must say that this has not been my experience. One of the two successful "systems" I trade is as off-the-shelf as you can get: it's simply "signals" from a "provider". They come from an "adaptive neural net software" and I don't even know what that means. I have a reasonable degree of confidence that the market's character hasn't changed today and turned their system into a loser, and if it suddenly has, I'll find out soon enough, won't I, when I have my first ever losing month with it? After 16 consecutive winning months (and other subscribers have had more) it's a chance I'm willing to take, with absolutely no "fight with my emotions".
Like you, I also don't think it's just a matter of buying a system or downloading it off the net, but for
very different reasons (which I've mentioned above).