Transition to a sustainable energy future carries uncertainties for all stakeholders, including those who research it. History does not repeat itself in detail, yet comparison with analogous processes already completed or in train could give shape to how we project the future. The author focuses not on the technical change required, but rather on the institutional and cultural changes that would be necessary to generate the political will and the consumer demand that would drive technical change and its widespread adoption. He examines a current crisis for most developed countries—that of old age pension provision, which – though lacking a link with new technology – might have similar social dynamics to an impending crisis in energy. [...]