The question of whether society has reached 'peak prosperity' has become a focal point in contemporary economic discourse. Proponents of the 'peak' theory argue that a combination of stagnant wage growth, environmental degradation, and the exhaustion of traditional industrial growth models suggests that the rapid improvements in quality of life seen in the 20th century are unlikely to continue at the same pace. Conversely, optimists point to rapid advancements in artificial intelligence, renewable energy, and medical technology as evidence that a new, more sustainable phase of prosperity is beginning.

There is significant disagreement regarding how to measure prosperity. Some analysts, such as those cited in The Age, focus on traditional GDP metrics, which have shown slowing growth in many developed nations. Others argue that GDP is an outdated metric that fails to account for mental health, leisure time, and environmental sustainability. While some sources suggest that the current economic climate is a temporary correction following the pandemic, others characterize it as a structural shift toward long-term decline. The debate remains unresolved, with experts divided on whether the current economic stagnation is a permanent feature of a mature global economy or a transitional phase toward a different model of human development.