The pension crisis in many developed countries stems from a demographic imbalance: people are living longer, but the retirement age and working lifespan have remained relatively fixed. This leads to fewer workers supporting more retirees over time, creating unsustainable economic pressure on pension systems.

Let's imagine we slow or even reverse aging. This wouldn't just extend life span it would extend healthspan. In practical terms, more people could remain physically and cognitively healthy well into what is currently considered "old age."

So curing aging (the ultimate goal of longevity) would solve the pension crisis in the West and the need for mass migration.