Alice’s remark treats rules as systems that should exhibit internal order. If Rule Forty-two is truly the “oldest,” its numbering should reflect primacy. By appealing to sequence, she exposes that the King has just fabricated the law to expel her. The humor lies in the mismatch between a supposedly ancient statute and its obviously ad hoc deployment, but the line also marks Alice’s transition from bewildered participant to critical evaluator. She applies clear, testable logic—first principles of ordering—to a context where words and procedures are used to intimidate rather than clarify. The King’s pallor and hasty closing of the notebook confirm the rule’s fragility under scrutiny. The exchange anticipates Alice’s culminating defiance—calling the court “nothing but a pack of cards”—by showing her confidence to dispute power using reason instead of submissive etiquette. The literal exaggeration of being “a mile high” further underscores the absurdity of legal categories here: bodies, sizes, and standards shift at will, so numbering becomes a tool for Alice to anchor sense in a nonsensical system—and to unmask its arbitrariness.