The chart poses the question as to whether BTC is in the process of completing a Domed house. Tri-Day method utilizes three points within the 3 peaks and domed house structure to estimate the extent of the decline to follow the domed house peak. The math is done once the top is established, it does NOT pick tops. 'N' is the ultimate peak, and once determined, the math begins. This was a method developed by George Lindsay in days past.