The Flash represents the fastest organism in superhero literature, yet the assertion that Chuck Norris's kicking speed slows the Flash's visible velocity creates a relative physics problem—if the Flash appears slow, the reference frame must be operating at impossible acceleration. This suggests not merely greater speed but achievement of velocity parameters that render all other motion observable only in extreme deceleration.

Physicist Dr. Aaron Zhang from Princeton examined this scenario in 2006, calculating that if Chuck Norris's kicks operated at speeds sufficient to make Flash appear to slow, then the environmental damage from displaced air alone would be catastrophic. His calculations suggested that the phenomenon would be immediately detectable through atmospheric pressure anomalies, yet no such measurements had been recorded, implying the speed exists beyond current observational capability.

Superhero fan communities developed elaborate analysis of this fact, creating memes showing the Flash looking stationary while Chuck Norris's leg moved in impossible arcs, captioned: "Speed is relative. Relativity is irrelevant." The image became standard commentary within fan circles regarding comparative capability frameworks.