She turned to a monitor that showed an animation loop, repeated over and over again. The cameras entered the bloodstream as an untidy, disorganized mass, a kind of buzzing cloud within the blood. Immediately the blood flow flattened the cloud into an elongated streak. But within seconds, the streak began to coalesce into a spherical shape. That shape became more defined, until eventually it appeared almost solid.

"If this reminds you of an actual eye, there's a reason. Here at Xymos we are explicitly imitating organic morphology," Julia said. "Because we are designing with organic molecules, we are aware that courtesy of millions of years of evolution, the world around us has a stockpile of molecular arrangements that work. So we use them."

"You don't want to reinvent the wheel?" someone said.

"Exactly. Or the eyeball."

She gave a signal, and the flat antenna was lowered until it was just inches above the waiting subject.

"This antenna will power the camera, and pick up the transmitted image," she said. "The image can of course be digitally stored, intensified, manipulated, or anything else that you might do with digital data. Now, if there are no other questions, we can begin." She fitted the syringe with a needle, and stuck it into a rubber stopper in the IV line.

"Mark time."

"Zero point zero."

"Here we go."

She pushed the plunger down quickly. "As you see, I'm doing it fast," she said. "There's nothing delicate about our procedure. You can't hurt anything. If the microturbulence generated by the flow through the needle rips the tubules from a few thousand cameras, it doesn't matter. We have millions more. Plenty to do the job." She withdrew the needle. "Okay? Generally we have to wait about ten seconds for the shape to form, and then we should begin getting an image… Ah, looks like something is coming now… And here it is." The scene showed the camera moving forward at considerable speed through what looked like an asteroid field.