The U.S. Navy is testing "Virtual Reality Headset" as part of the Office of Naval Research's "Project BlueShark." The goal of their project is to see what the controls of a ship might look like, given new technology over the next decade. Screens, even the futuristic displays on ultramodern vessels like the USS Zumwalt, are limited to two dimensions. Combat, with ships on the surface, submarines below, aircraft above, and missiles, torpedoes, and depth charges moving at odd angles all around, is a three-dimensional experience.