Counterfactual

The Parallel Lives of Jacoby and Chase

In 126 boys, Jacoby found its level. 50 years earlier, Chase occupied that same statistical address.

1959–2025

Jacoby

peak 2008 2025 1900192019401960198020002020
Peak year 2008
Peak births 691
Latest count 126
Status Declining
Peak generation Gen Z
1885–2025

Chase

peak 2009 2025 1900192019401960198020002020
Peak year 2009
Peak births 7,394
Latest count 1,904
Status Declining
Peak generation Gen Z
Jacoby and Chase peaked in the same cultural weather — the Gen Z naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.