CFD reminds me of the tectonic layers and the Earth formation process. An easy way to memorize the logic of this report would be this: the more rugged the outline of the layers is, the more turbulent the process, the more bottlenecks it has. Ideally, this report would have all the surfaces even, where the blue layer (the ocean surface) remains serene and almost untouched, this means just a few to do’s are added, the seabed layer (the work in progress) is reasonably thin, and the solid baseline layer of the Done work (the Earth crust) is getting thicker and thicker (but that’s utopian…).