Eve Rodsky opens by presenting extensive evidence and personal accounts demonstrating that household labor and mental load division remains substantially unequal in many households, even those with otherwise professed egalitarian values.

Why this gap between professed values and actual practice matters:

• Many couples genuinely believe they're dividing household responsibilities fairly, while actual time and mental-load tracking reveals substantial ongoing imbalance
• This gap often reflects invisible 'mental load' — the ongoing cognitive labor of noticing, planning, and managing household needs — that's harder to recognize and value than more visible physical tasks
• Rodsky's research and personal experience motivate the book's subsequent practical system for addressing this often-invisible imbalance

This opening establishes the book's central diagnostic finding, motivating its subsequent practical system for more genuinely equitable household responsibility division.