- Historic shift: in 2025 the share of U.S. adults 65+ surpassed children 5 and under—for the first time in human history—highlighting a major demographic turning point.
- The U.S. will actually look younger globally by 2060 (falling from the 48th- to the 110th-oldest country) as places like Japan and South Korea age far faster—South Korea is projected to have ~41% aged 65+ by 2060.
- Real-world effects: longer lifespans but fewer healthy working years, rising chronic illness among seniors, booming health/social-care jobs, and renewed talk of policy fixes like raising retirement ages.
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