The family graph is the file: what gets assembled, not what gets posted
Your Family Never Posted Together
A March 2026 engineering post from a major social platform described models that estimate which of its users are close to each other offline. This brief asks what a continuously maintained estimate of family and friendship ties reveals about a household that has never posted together, and whether the usual questions about false outputs and underage users reach it. Built from first-party documentation, a regulatory study and inference research. For families and family offices.