Counterfactual

The Parallel Lives of Lumen and Diamond

In 18 girls, Lumen found its level. 50 years earlier, Diamond occupied that same statistical address.

2011–2025

Lumen

peak 2015 2025 192019401960198020002020
Peak year 2015
Peak births 43
Latest count 18
Status Declining
Peak generation Gen Alpha
1908–2025

Diamond

peak 1999 2025 192019401960198020002020
Peak year 1999
Peak births 2,160
Latest count 94
Status Endangered
Peak generation Gen Z
Lumen and Diamond peaked in the same cultural weather — the Gen Alpha naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.