Counterfactual

The Parallel Lives of Tylee and Madeleine

In 42 girls, Tylee found its level. 50 years earlier, Madeleine occupied that same statistical address.

1972–2025

Tylee

peak 2008 2025 1900192019401960198020002020
Peak year 2008
Peak births 80
Latest count 42
Status Stable
Peak generation Gen Z
1881–2025

Madeleine

peak 1998 2025 1900192019401960198020002020
Peak year 1998
Peak births 1,424
Latest count 679
Status Stable
Peak generation Gen Z
Tylee and Madeleine 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.