The productivity slowdownproductivity slowdown put an end to thirty years of per labor/capital increasing energy rentsenergy rents (1945–1975), raising the question whether anything or anyone can reverse what has been a half-century of anemic productivity growthproductivity growth (1975–2025). This chapter discusses these issues against the backdrop of the energy-organization approachenergy-organization approach to material wealth. The prognosis it offers is essentially negative, pointing to the limits of acceleration-based productivity and output growth.