Counterfactual
The Parallel Lives of Sinead and Riley
In 11 girls, Sinead found its level. 50 years earlier, Riley occupied that same statistical address.
1975–2025
Sinead
Peak year
1990
Peak births
160
Latest count
11
Status
Stable
Peak generation
Millennial
1923–2025
Riley
Peak year
2016
Peak births
7,159
Latest count
4,441
Status
Declining
Peak generation
Gen Alpha
In 11 girls, Sinead found its level. 50 years earlier, Riley occupied that same address. One peaked in the Gen Alpha era; the other in the Millennial world. They never met. But the data remembers them both.