Counterfactual

The Parallel Lives of Reilly and Ariel

In 60 girls, Reilly found its level. 50 years earlier, Ariel occupied that same statistical address.

1978–2025

Reilly

peak 1998 2025 1900192019401960198020002020
Peak year 1998
Peak births 379
Latest count 60
Status Declining
Peak generation Gen Z
1892–2025

Ariel

peak 1991 2025 1900192019401960198020002020
Peak year 1991
Peak births 5,411
Latest count 851
Status Declining
Peak generation Millennial
Reilly and Ariel 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.