Counterfactual
The Parallel Lives of Arlynn and Mackenzie
In 14 girls, Arlynn found its level. 50 years earlier, Mackenzie occupied that same statistical address.
1917–2025
Arlynn
Peak year
2018
Peak births
25
Latest count
14
Status
Stable
Peak generation
Gen Alpha
1973–2025
Mackenzie
Peak year
2001
Peak births
6,934
Latest count
1,343
Status
Declining
Peak generation
Gen Z
Arlynn and Mackenzie 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.