Technical analysis is truly unique. In less then 1 second the trader can see a very significant quantity of information related to price movement of one currency. The lines of moving average can show you the trend. Candlesticks show you the correlation between the opening price and the closing price. Bollinger bands gives you price target and shows you the volatility level of a currency pair. Oscillators like MACD offer entry point signals and exit point signlas. All this informations are provided instantly, but technical analysis is not necessarily the best invention ever.
Bellow are shown 5 ways in which technical analysis shows it’s imperfection. This unpredictable events can cause currency pairs to move unpredictable for a couple of hours or a couple of days, in some cases even for a few months.