It is a step forward to be able to calculate the alignment of the mantle convection cells underneath the crust, and thereby knowing how force is exerted on the tectonic plates from down below. The basics tectonic features of Iceland and many other areas follow the formulas very accurately. I participated in a search for geothermal heat at Skógarströnd of the Snæfellsnes Peninsula, and geothermal heat was found at the farm of Innra-Leiti. The borehole was about 1 km deep and hot water was actually found there and registered. Two faults did cross each other at the location of the borehole, providing the necessary flow of water. Dr. Haukur Jóhannesson decided the exact location of the drilling site. Both faults did fit into the convection cell formula, and therefore the site was considered more convincing. Knowledge is to be utilized!