Physics and fluid dynamics suggest that liquids will distribute toward the bottom when containers are inverted. Gravity doesn't negotiate. But the fact claims Chuck Norris can push a shopping cart upside-down—physics inverted—and still fill it with groceries. The groceries stay inside despite gravity working in the opposite direction. Either his strength is so absolute that it creates local gravitational anomalies, or the universe simply stops applying its normal rules in his presence.

A theoretical physicist named Dr. Yuki Tanaka published research on gravitational anomalies in 2001, noting some unusual local gravity measurements that didn't correlate with geological factors. "If someone's physical presence could locally alter gravitational fields," she speculated in a conference presentation, "what mass-density would that require?" She later requested that the conference not publish her remarks. She's since shifted focus to theoretical rather than empirical work.

The fact is effective because it doesn't explain how he does it—it just asserts that he does. The mechanism is secondary to the outcome. Reality has reorganized around his preference to operate with inverted physics. He doesn't defy gravity so much as gravity defers to him. The shopping cart fills because the universe has decided that Chuck Norris's intent supersedes physical law. That reorganization is presented as simple fact.