There are so many indicators nowdays that a TA beginner will think that lining up all the indicators and getting into a trade will guarantee a profit. But sure he will find out that he cant do that.The reasons are obvious My question is how would u choose to filter out ur trades?Whats the crieteria?Why would u choose a 18 period stochastic over a 14 one or ADX or Money Flow Index.Sure you can try them one by one losing money and perhaps u will find one of them that works perfectly.But how do u know that there is not anything better to use. Answer Simple-backtest.Test ur historical data applying the strategies and see how they did in the past.This is such a neglected concept mainly because to backtest u have to learn programming.All trading languages are quite easy compare to full blown programming languages and if u r serious about trading u have to know at least one of them to underatand u r strategies better I just thought that this concept was being neglected here so this post was just to bring this to all ur attention.I just have around 2 years of experience in the markets and it was lots of backtesting that has given me the understanding about things that work and those are just hogwash. One of the reasons the myth of elliott wave survives is because u cant bactest them easily.U add new data u get new waves.More the data different the wave count.So they have got the power of hindsight which lot of systems have not. Questions like which period of stochastic or macd can be easily solved if u just know a little programming and backtest.Try it and u will never be the same.