The Long Ride will occasionally step outside our usual health and wellness series on aging to look at the bigger picture, with occasional thought-provoking essays. This is one of those times when my curiosity got the better of me.
My paternal grandfather retired at 65 and died at 71. Six years. That was the implicit contract of old age for his generation — a quiet, brief stretch between the working years and the end.
A rocking chair. A garden. A slow fade to black.
We blew up that contract decades ago. People in their seventies now run marathons, lead companies, compete in masters cycling events, and start second careers. The definition of ‘old’ has been sliding forward my entire adult life, and the science of longevity and healthspan suggests it will keep sliding.
But there is something else coming — something that doesn’t show up in the fitness data or the longevity research. It’s a tidal shift in demographic data, and it changes everything about what aging will feel like in just 25 years.
Here is a key data point to keep in mind: in 2010, there were roughly seven working-age adults in the United States for every person over 65. By 2050, that ratio will fall to about three to one. In Europe, the numbers are even starker — from four to one in 2010 to below two to one by 2050. By the time today’s twenty-year-olds reach their eighties, the civilization-scale support system built to care for the elderly — pensions, Medicare, professional caregivers, subsidized housing — will be operating on a fraction of the human capital it was designed to support.
This isn’t a speculative projection. It is the downstream consequence of low fertility rates that began to decline a decade ago. The people who will be forty in 2065 have already been born — or, in many cases, have not. The global fertility rate has fallen from 4.8 children per woman in 1950 to 2.2 today and is projected to reach 1.6 by 2100.
South Korea — often the leading indicator of where industrialized societies are heading — is currently at 0.68. Less than one child per woman. No country has ever sustained a recovery from a rate that low.
In Canada, the picture is slightly different in mechanism but identical in consequence. Statistics Canada projects the population aged 85 and older will triple to between 3.3 and 4.3 million by 2073. Immigration was once the sole engine of Canadian population growth, but recent changes to immigration policy will now only hasten the structural pressure of an aging population drawing on pension and care systems built for a younger demographic profile.
The math is simple, and the math is brutal: there will be far fewer young people to fund, staff, and sustain the systems that support the very old. What does that mean for the person navigating old age in 2050 and beyond?
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The obvious answer is that old age in 2075 will not be one thing. It will fracture along lines of health, wealth, and — perhaps most importantly — the choices people make in the decades before they get there.
For those who did not invest in their health, old age in 2050 will be genuinely precarious. The caregiver support ratio — the number of people in their forties and fifties available to care for those aged eighty and over — is projected to drop from roughly 7 to 1 in the US, to 3 to 1 by 2050.
In practical terms, finding a professional caregiver will be expensive, competitive, and in many communities simply impossible. The direct care workforce already turns over at rates of 40 to 60 percent per year, plagued by low wages and difficult conditions. Researchers project shortages of 151,000 paid care workers in the US by 2030, rising to 355,000 by 2040. By 2050, without radical policy intervention, paid care will be a luxury good.
And with smaller families producing fewer adult children, the informal network of family care will be thinner still. Dependence, for those who arrive at eighty having neglected their bodies, will be a lonely and expensive condition. I think about the men I know who retired at 65 and stopped moving. They are the ones this scenario describes.
For those who are financially prepared but not physically ready, something more interesting emerges: a care economy increasingly built around artificial intelligence and robotics. This is not science fiction — it is already measurable.
The elder care robotics market is growing at nearly 15 percent per year. Japan, facing the sharpest version of this demographic crisis today, is deploying robots in nursing facilities not as a novelty but as a structural response to a workforce that cannot be recruited fast enough.
By 2050, AI-assisted care — remote monitoring, predictive health analytics, medication management, fall prevention, even companionship systems — will be sophisticated enough to meaningfully extend independent living. It will be cold, but efficient. And it will highlight, by contrast, what human presence once meant.
For those who arrive at old age healthy, connected, and financially realistic, 2050 may be a remarkable time to be alive. The biology of lifespan is advancing rapidly. Treatments that modulate cellular aging, that suppress chronic inflammation, that restore muscle and bone density with precision — these are not distant possibilities. They are in clinical trials now.
A 75-year-old in 2050 who has maintained their cardiovascular fitness, muscle mass, metabolic health, and cognitive engagement may be functionally younger than a 60-year-old is today. Old age at that point begins not at 65 but at 85 or 90 — and it is shorter, more compressed, and far less defined by dependence. This is the version I am training for. Whether I arrive there depends on the decisions I am making right now.
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There is one more variable the standard demographic models don’t fully account for, and it is the one that public health researchers have been pressing hardest on in recent years: the role of synthetic chemicals in accelerating reproductive decline.
A comprehensive meta-analysis has documented an approximately 50 percent drop in sperm concentration in industrialized nations between 1973 and 2011.
The World Health Organization has designated infertility a global public health crisis. Endocrine-disrupting chemicals — found in plastics, pesticides, personal care products, cookware, and water — interfere with hormonal signalling in ways that impair fertility in both men and women, and that begin their work in the womb.
If these compounds are even partly responsible for the fertility decline reshaping global demographics, then the trajectory is worse than social models suggest, and the timeline for the young population to begin shrinking is shorter than we’d like to believe.
I pay attention to this research not only for its demographic implications but for a more personal reason. These same chemicals — BPA, phthalates, PFAS, PCBs — are not merely a reproductive concern. They are implicated in cardiovascular disease, metabolic disruption, hormonal cancers, and cognitive decline.
The elderly population of 2075 is being shaped, in part, right now by what today’s working-age adults are exposed to in their thirties, forties, and fifties. The case for reducing your EDC load is not just about fertility statistics. It is about the biological age at which you will arrive at your own old age.
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There is a quiet arrogance in assuming that the systems built to support aging people will still be running smoothly when your own turn comes. They may not be. The pension assumptions embedded in most retirement plans were built for a world with a different demographic structure. The social care infrastructure was built for a world with more young people. The informal family networks that once cushioned old age were built for a world with more children.
None of this is cause for despair. It is a cause for clarity.
The most powerful thing a person in their sixties can do right now is to extend the years of their functional independence — not just for quality of life, but as a direct response to a care system that will be understaffed and financially strained when it is needed most. Every year of added strength, balance, cardiovascular health, and metabolic function is a year less dependent on systems that will be competing to serve more people with fewer resources.
Building community intentionally matters more than most people realize. The data on loneliness and aging is already alarming, and smaller families will make it worse. The cycling groups, the fitness communities, the neighbourhoods designed for aging in place — these are not lifestyle accessories. They are the social infrastructure that will matter more, not less, as formal care systems strain under the demographic weight.
Your social network is a health asset. It will also, eventually, be a care asset.
Staying engaged with the policy decisions underway on pension reform, immigration, AI governance in healthcare, and EDC regulation is not a passive act. These are not abstract debates. They are the architecture of the world you will inhabit at 80. The people making those decisions right now are unlikely to be 80 themselves. The people who will live with the consequences are.
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What 2050 will really clarify — what the data is already beginning to show — is that old age was never a fixed category. It was always a codependent relationship among our bodies, society, and the time in which both exist. The body is something you train. Society is something you engage with. Time is something you cannot control.
My grandfather had six years. The contract he inherited gave him no reason to expect more, and no tools to build toward it, even if he had.
You have more. The question is what you do with it.
The research cited here informs but does not constitute medical or financial advice. The conclusions and opinions are mine, based on the available research noted below. Please consult relevant professionals before making significant changes to your health, investment, or retirement planning based on any single source.
Research & sources referenced in this piece
United Nations Department of Economic and Social Affairs. World Fertility 2024. Global fertility rate data, historical trends, and projections to 2100.
Vollset, S.E. et al. (2024). Fertility, mortality, migration, and population scenarios for 195 countries and territories from 2017 to 2100. The Lancet. IHME, University of Washington.
U.S. Census Bureau, International Programs Center (2024). Population estimates and projections for 34 countries. South Korea TFR of 0.68 in 2024.
Pew Research Center (2025). 5 Facts About Global Fertility Trends. August 2025.
Bottery, S. & Baylis, A. (2022). The Caregiver Support Ratio in Europe. Frontiers in Public Health / NIH PMC.
AARP Public Policy Institute. Caregiver Support Ratio projections for the United States. U.S. CSR of 7:1 in 2010 projected to reach 3:1 by 2050.
Lowenthal, J. (2025). Strengthening the Direct Care Workforce. Innovation in Aging / Oxford Academic. Direct care workforce turnover 40-60% annually.
Grand View Research (2025). Elder Care Assistive Robots Market Report. The elder care robotics market is growing at approximately 14.8% CAGR.
Hao, Y. et al. (2025). Navigating the future of artificial intelligence technologies for improving the care of older adults. Innovation in Aging, Oxford Academic.
Eurostat (2024). Population Structure and Ageing. EU population aged 80+ projected to increase 2.5-fold from 6.2% to 15.3% between 2025 and 2100.
Penn Wharton Budget Model (2025). The Long-Term Outlook for Social Security. Trust fund depletion projected for 2032.
Bipartisan Policy Center (2026). Written Testimony on the Future of Social Security. Combined Social Security and Medicare costs are projected to rise from 7% to 17% of GDP by 2082.
OECD (2025). Pensions at a Glance 2025. Public pension spending forecast to rise from 10% to 17% of GDP over the next 30 years.
Levine, H. et al. (2017, updated through 2025). Temporal trends in sperm count: a systematic review and meta-regression analysis. Human Reproduction Update. Approximately 50% drop in sperm concentration in industrialized nations, 1973–2011.
Molina-Lopez, A. et al. (2025). Endocrine-Disrupting Chemicals and Male Infertility. MDPI Infectious Disease Reports.
Dupont, C. et al. (2024). Exposure to endocrine disruptor chemicals and declining female fertility. Frontiers in Public Health.
Bertoli, S. et al. (2025). Potential effects of environmental toxicants on sperm quality and potential risk for fertility in humans. Frontiers in Endocrinology.
Statistics Canada / Immigration Canada (2026). Population Projections 2025–2075. Population aged 85+ projected to triple to 3.3–4.3 million by 2073.
C.D. Howe Institute (2026). Balancing Canada’s Population Growth and Ageing Through Immigration Policy. April 2026
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That sounds intriguing, Florian. What will you require of me?
hello, I'm working on a joy inducing task -yes, it is possible - and I need someone patient to try my new protocol, is it of interest?