Forex EAs can help forex traders early on in their tradingcareer but quickly become less useful as the trader becomes more experienced. The reason this is the case is because forex EAs are unable to process things such as news, political events, or natural catastrophes, all things which affect a country's currency. It may track the signals and initiate trades on behalf of the trader, but a trader may have already lost money by then. Therefore, reliance on forex EAs is acceptable sometimes, but should be slowly replaced by a trader's experience.