He bought a currency trading system which claimed that a few years ago and which claimed the previous one. So how was good? Well what happened to me happens to well over 90% of people who buy trading systems outside the network to read . . . The system is basa in artificial intelligence and, indeed, claimed to be able to think for himself and was developed by a truly brilliant engineer Naser an uncle. I was very impressed and decided to give it a go. The first week it did then 20% over the next 5 weeks annihilated entire account and there is a lesson here for anyone thinking of buying a forex system. The lesson is -- Check closely the disclaimer on the record, the mine had a below which you will see almost all systems sold online, here it is: "CFTC rule 4. 41 - hypothetical or simulated performance results have certain limitations. Unlike an actual performance record, simulated results do not represent actual trading. Moreover, because the routes have not been executed, the results may have under-or over-compensation for the effects, if any, of certain market factors, such as lack of liquidity. Simulated trading programs in general are also subject to the fact that they are designed with the benefit of hindsight. No representation is made that any account or is likely to achieve profits or losses similar to those identified ". When I read that now I can 't believe how I was dumb. The system had never really negotiated, and only afterwards, of course, that's easy. I was just impressed with the seller, was a beautiful and very bright guy - but he has been confined to build an intelligent system and fitted curve and that means equity wipeout. He rule created after article bent and the system for profit in data. The the problem is, of course, no two pieces of data replicate themselves increasingly accurate and the system is called failed. This curve fitting. A businessman I know that once again like this to shoot a barn door that a drawing chalk circle around the world - after the shots had been fired, to make them see how all bulls-eyes. Today nothing has changed , The majority of system vendors promote a system based on a simulation trajectory that has been installed and is designed to curve fail. My advice is if you're buying a currency trading system, you can see a simulation, be cautious and either discount and pass, or see if the system has been fitted. Clues curve in a curve installed system are as follows: - A bunch of rules and parameters of standards unique to different markets-Unique standards for different conditions of subjectivity in trade signals cancel rulesGenerally, which is better for a simple system that has few elements break up real-time trading and comfort of a real-time history with the states account for at least 3 years. Be careful when choosing a currency trading system and always looking curve fitting before buying.