Counterfactual

The Parallel Lives of Jaelyn and Hayley

In 98 girls, Jaelyn found its level. 50 years earlier, Hayley occupied that same statistical address.

1963–2025

Jaelyn

peak 2008 2025 1960198020002020
Peak year 2008
Peak births 1,014
Latest count 98
Status Endangered
Peak generation Gen Z
1960–2025

Hayley

peak 1993 2025 1960198020002020
Peak year 1993
Peak births 2,618
Latest count 179
Status Endangered
Peak generation Millennial
Jaelyn and Hayley 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.