Read the passage. Paragraph 1: The arrangement of letters on a keyboard can feel natural simply because it is familiar. Many users type without wondering why the keys are placed as they are. Paragraph 2: Keyboard layouts developed through a mix of mechanical limits, business decisions, training habits, and later standardization. The arrangement was not handed down by logic alone. Paragraph 3: This history reminds us that familiar tools can carry old compromises. What seems inevitable may be the result of choices that became difficult to undo. What role does Paragraph 2 play in the keyboard-layout passage?