To help make sense of it T.R. did something that grayed out most of the complex while highlighting a narrow shaft that angled down into the rock from the head frame Willem had noticed as they drove in. "Looks small compared to all this other shit," T.R. said, "but it ain’t. Here’s the Pina2bo shaft for comparison." He somehow caused a red tube to materialize on the map, beginning at the same site. It went vertically downward and it only went half as deep. "Point is, conditions prevailing here—availability of equipment, competence of the rock, et cetera—make it possible to bore at an angle and to bore deeper and wider. More barrels. Higher muzzle velocity."