Counterfactual
The Parallel Lives of Kollin and Arlo
In 38 boys, Kollin found its level. 50 years earlier, Arlo occupied that same statistical address.
1970–2025
Kollin
Peak year
2009
Peak births
128
Latest count
38
Status
Declining
Peak generation
Gen Z
1899–2025
Arlo
Peak year
2024
Peak births
2,490
Latest count
2,443
Status
Rising
Peak generation
Gen Alpha
Kollin and Arlo 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.