Counterfactual
The Parallel Lives of Phyllis and Kaitlyn
In 7 girls, Phyllis found its level. 50 years earlier, Kaitlyn occupied that same statistical address.
1880–2025
Phyllis
Peak year
1947
Peak births
9,187
Latest count
7
Status
Endangered
Peak generation
Boomer
1971–2025
Kaitlyn
Peak year
2000
Peak births
8,759
Latest count
340
Status
Endangered
Peak generation
Gen Z
In 7 girls, Phyllis found its level. 50 years earlier, Kaitlyn occupied that same address. One peaked in the Gen Z era; the other in the Boomer world. They never met. But the data remembers them both.