As Dr. Barrett first designed it, the bullet would have three fiber-optic based eyes (at minimum, for three-dimensionality), evenly distributed about its circumference.  To activate its guided nature, a laser is pointed at a target.  As the bullet approaches its final destination, it adjusts its flight path in real time to allow an equivalent amount of light from the laser to enter each eye.  The bullet would not travel in multiple directions as though it were an autonomous vehicle, but instead, would make small adjustments to its flight path to hit the target precisely where the laser was placed.  Moreover, the laser would not have to originate from the source of the bullet, allowing the projectile to be fired at a target beyond visual range.  