The Longevity Paradox - Why Life Extension Destabilises Societies Without Institutional Redesign

This working paper introduces The Longevity Paradox: the structural tension created when rejuvenation technologies extend human lifespan faster than institutions can adapt. Through the thought experiment of a hypothetical therapy, Aevitas‑1, the paper examines how longer lives amplify existing societal pressures—power persistence, inequality, institutional inertia, and the slowing of cultural renewal. It outlines three default societal responses (elite capture, labour‑for‑access systems, and universal access) and shows why each is brittle without deliberate redesign. The paper distinguishes between gradual and sudden longevity, arguing that discontinuity—rapid capability arriving faster than institutional adaptation—is the core destabilising factor. It explores how a slow path enables iterative reform, norm evolution, and controlled turbulence, while a fast path risks locking societies into fragile configurations. Building on this analysis, the paper proposes principles for redesigning governance, economic systems, cultural norms, and ethical frameworks to support extended lifespans. It also examines the accelerating role of AI in both enabling rejuvenation and modelling its societal impacts. The conclusion frames longevity as both constraint and catalyst: a force that can destabilise existing systems or enable a renaissance of institutional imagination, depending on the tempo of change and the foresight applied.