All indicators you develop should have math that is easily understandable that you can cross check to your chart to make sure everything is correct. In a non cyclic market all that has to be done on my very bottom indicator to estimate the trend speed ten days forward in time is to take the current trend speed and add it to the acceleration rate. I set up all my periods in a easy to understand way. Just read what I have what I have written on the chart and you should see how it works! Note: I use custom formulas, filtering passes, and other things so this is not a normal MACD. You can developer your own study. This is just to help those that are trying to wrap their head around projecting current/future trend speed and solving market price targets. The formula's are pretty simple really... Ever wonder how goldman sachs and other wall street firms give out price projections a year in advance of stocks hitting those levels? Simple velocity/acceleration extrapolation math like this.