Age discrimination remains a barrier to employment and job mobility for older workers.

This page isolates one claim from the wider argument of The Human OS Manual.

The classification describes the evidence supporting this claim, not the Human OS framework as a whole.

The OECD Employment Outlook 2025 describes employer bias, lower re-employment prospects, and hiring and retention challenges for mid-to-late career workers. WHO describes ageism as stereotypes, prejudice, and discrimination that can operate through institutions and workplace practices.

These sources do not show that ageism explains every late-career employment transition, that all employers discriminate by age, or that health, skills, occupation, caregiving, and economic conditions are unimportant.

Chapter 30 uses ageism to mark a structural limit on the assumption that longer healthspan automatically produces a longer earning life.

Sources are listed according to the role they play in this claim. One source may provide direct support, another may explain a mechanism, establish a limitation, or prevent an interpretation from becoming broader than the evidence allows.

The printed book preserves the claim inside the argument that gives it meaning. These references connect the current digital record to the first-edition evidence trail.

This claim connects to the following parts of the Human OS architecture. The module labels locate the claim inside the framework; they do not imply that the research source validates the architecture itself.