Counterfactual
The Parallel Lives of Lainie and Isabelle
In 52 girls, Lainie found its level. 50 years earlier, Isabelle occupied that same statistical address.
1966–2025
Lainie
Peak year
1970
Peak births
91
Latest count
52
Status
Rising
Peak generation
Gen X
1880–2025
Isabelle
Peak year
2007
Peak births
4,106
Latest count
1,825
Status
Declining
Peak generation
Gen Z
In 52 girls, Lainie found its level. 50 years earlier, Isabelle occupied that same address. One peaked in the Gen Z era; the other in the Gen X world. They never met. But the data remembers them both.