Counterfactual

The Parallel Lives of Rocco and Leslie

In 679 boys, Rocco found its level. 50 years earlier, Leslie occupied that same statistical address.

1891–2025

Rocco

peak 2009 2025 18801900192019401960198020002020
Peak year 2009
Peak births 785
Latest count 679
Status Stable
Peak generation Gen Z
1880–2025

Leslie

peak 1952 2025 18801900192019401960198020002020
Peak year 1952
Peak births 2,358
Latest count 32
Status Endangered
Peak generation Boomer
In 679 boys, Rocco found its level. 50 years earlier, Leslie occupied that same address. One peaked in the Boomer era; the other in the Gen Z world. They never met. But the data remembers them both.