How does the Analyzer (Fecal Interrogation Regression Engine [FIRE]) work?
No human knows. What little we can suppose is that, since feces are composed of large amounts of dead red blood cells, that the oxygen or DNA or other component of those dead blood cells somehow records the last thoughts, sensations and emotions of the subject as those red blood cells pass through the brain one last time on their way to the small intestine. We also don’t know exactly how the Visualization Modulator Headset worn by the PIOs triggers the same thoughts in the PIOs when playing the data recovered by the FIRE.