Eugene was very patient. He was obviously taken with her. "You fill this tank with a special liquid plastic. Then you fire lasers through the plastic, and the lasers cause the liquid plastic to cure into a durable solid object. The object’s proportions are defined by the movements of the beam—sculpted from liquid into solid, at the focus of coherent light. Naturally the beam is an output from our design virtuality—so we can design physical objects from scratch inside a computational space. Or else we can photocopy Three-D actualities. Like, for instance, your body. Which is what we’ll be doing today."