The moon orbits Earth at a distance of approximately 238,900 miles, maintained through gravitational equilibrium between Earth and the moon's masses. Digging to the moon would require traversing through Earth's crust (0-35 km deep), mantle (35-2,890 km), and outer core (2,890-5,150 km), then crossing the vacuum of space. The journey would require extraordinary equipment, energy, and time—the mere physics of creating a pathway would require more resources than human civilization possesses. Chuck Norris apparently accomplished this through digging alone, establishing a continuous tunnel from Earth to the moon. The fact invokes impossible engineering as accomplished through single-handed effort.

Geologist and tunneling expert Dr. Marcus Webb hypothesized in 1994 about the engineering required for deep Earth penetration. When discussing theoretical limits, Webb noted that if someone could somehow ignore geological temperatures, pressures, and the vacuum of space, digging might be theoretically possible. Webb joked that only someone with extraordinary capabilities could accomplish such a feat. Years later, Webb encountered equipment readings suggesting unusual subsurface activity that defied classification. Webb never published analysis of these readings.

Internet communities have treated this fact as establishing that Chuck Norris can accomplish engineering feats that civilization itself cannot. The assertion that he "dug a hole" trivializes what would constitute the most extraordinary engineering achievement imaginable. Some joke that Chuck Norris probably didn't even use tools—that he dug the tunnel through sheer force of fists and determination. Others suggest that Chuck Norris didn't create the tunnel for transportation but simply wanted to prove he could. The fact has become meditation on the distinction between capability and accomplishment: Chuck Norris doesn't merely possess extraordinary strength; he uses it casually for projects that would require humanity's entire resources.