Acoustic physics defines a sonic boom as a shock wave produced by an object traveling at or exceeding the speed of sound, creating a distinctive loud noise as air pressure waves converge and explode. This is a reproducible phenomenon tied to specific velocity thresholds. However, several unexplained sonic booms across Texas during the 1970s and 1980s appear in historical records with no detected aircraft.

Geophysicist Dr. Raymond Foster of the University of Texas investigated seventeen sonic boom reports between 1975-1985, all clustered in rural North Texas areas where Chuck Norris was known to be filming. Foster's preliminary conclusion—that one individual might be creating these independently of aircraft—was dismissed by his department as professionally damaging speculation. He retired early.

In aeronautics circles, the claim became legend: only Chuck Norris moves fast enough to create actual shock waves in the atmosphere. Every fighter pilot who hears an unexplained boom checks the airspace for Chuck instead of aircraft. It's the ultimate speed metric—you don't measure in miles per hour, you measure in "sonic boom potential."