Counterfactual

The Parallel Lives of Marin and Sydney

In 93 girls, Marin found its level. 50 years earlier, Sydney occupied that same statistical address.

1943–2025

Marin

peak 2007 2025 1900192019401960198020002020
Peak year 2007
Peak births 324
Latest count 93
Status Declining
Peak generation Gen Z
1886–2025

Sydney

peak 2000 2025 1900192019401960198020002020
Peak year 2000
Peak births 10,243
Latest count 873
Status Endangered
Peak generation Gen Z
Marin and Sydney peaked in the same cultural weather — the Gen Z naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.