Demographic Transition: From Growth to Decline

This presentation explores one of the defining policy challenges of the twenty-first century: the global transition from population growth to population ageing and eventual decline. Using a System Dynamics and systems engineering perspective, I explain why governments must move beyond traditional growth-based planning and instead focus on maintaining resilient, affordable, and effective public systems under demographic contraction. The presentation introduces seven strategic policy portfolios to help societies adapt. Whether you are interested in public policy, systems thinking, demographics, or systems engineering, this talk offers a practical framework for understanding and responding to one of the most significant long-term trends shaping our future.