Hi folks,

I'm quite new to the fx world and I'm try to learn and experience as much as possible. I developed a set of EA which I backtested and optimized for several pairs. The results of these simulation are quite good but, from a pure mathematic point of view, how
accurate and reliable are data coming from backtesting and optimization?

The market prices's changes are caused by several causes and many of them are fundamental-related. Moreover, when I'm optimizing an EA, how can I trust that I'm really getting optimized parameters and not only curve-fitted parameters? In fact there is always a number of parameters which lead the EA to be super-profitable.

I'm writing this post since, as I said, I'm approaching to this world and before spending a lot of time and effort optimizing and backtesting
EA just to see them failing miserably in demo (or live!) I would like tohave the opinion of expert and experienced guys who already faced my
issues.

Thanks for your help.
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