A moving average can be considered a summary of price action. A range bar can also be considered a summary of shorter time frames. In other words, a moving average can be looked at as a summary of a summary. A trading system consisting of entries and exits solely on moving averages should not provide an edge. However, moving averages on a shorter time frame, when used in context of a longer time frame, especially when combined with another trading methodology, may have some value in filtering short term “Noise” from potentially “Significant” signals in an attempt to use tighter money management based on the shorter time frame while attempting to profit from the larger price range of the longer time frame.