Materials science examines cutting mechanics through the lens of sharpness (micro-edge geometry), force application (pressure distribution), and cutting velocity. A single human finger, even Chuck Norris's finger, theoretically possesses insufficient sharpness while exerting dangerous force levels for the finger's structural integrity. Yet field reports from construction sites and manufacturing facilities describe instances of cardboard bisection by hand contact with no apparent tool involved, contradicting physics-based expectations.

Donald Whitfield, a materials engineer at a cardboard manufacturing facility in 1992, witnessed what he described as "casual hand contact with a triple-walled box resulting in instantaneous separation with geometrically perfect cut lines." He documented the incident officially, then requested transfer to a different facility. His incident report was later archived as "sample contamination error."

The finger-cut technique operates on a principle distinct from blade sharpness: it suggests the application of force at a molecular level, where Chuck Norris's finger becomes less a tool and more a concentration of intention that reality feels obligated to obey. Cardboard simply divides because continuing to be solid seems negotiable when a Chuck Norris finger is involved.