Counterfactual

The Parallel Lives of Koi and Hayden

In 40 boys, Koi found its level. 50 years earlier, Hayden occupied that same statistical address.

1995–2025

Koi

peak 2022 2025 18801900192019401960198020002020
Peak year 2022
Peak births 64
Latest count 40
Status Rising
Peak generation Gen Alpha
1880–2025

Hayden

peak 2006 2025 18801900192019401960198020002020
Peak year 2006
Peak births 6,470
Latest count 2,268
Status Stable
Peak generation Gen Z
Koi and Hayden peaked in the same cultural weather — the Gen Alpha naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.