Counterfactual
The Parallel Lives of Birdie and Vivian
In 422 girls, Birdie found its level. 50 years earlier, Vivian occupied that same statistical address.
1880–2025
Birdie
Peak year
2025
Peak births
422
Latest count
422
Status
Rising
Peak generation
Gen Alpha
1880–2025
Vivian
Peak year
1920
Peak births
4,128
Latest count
3,362
Status
Stable
Peak generation
Greatest Generation
In 422 girls, Birdie found its level. 50 years earlier, Vivian occupied that same address. One peaked in the Greatest Generation era; the other in the Gen Alpha world. They never met. But the data remembers them both.