A data refresh, a new tool, and a picture worth more than I expected.

I have been spending the last several weeks doing something I probably should have done sooner — going back through the foundational topics on this site and refreshing the research. Not because the original posts were wrong, but because the data underneath them keeps moving, and if you write about AI, longevity, generational economics, and the future of human dignity, the distance between "current" and "outdated" compresses faster than it used to.

The process has been instructive in ways I didn't anticipate. When you revisit the same arguments with two more years of data, some of what felt like speculation hardens into pattern. Some of what felt like alarm turns out to have been understatement. Very little of it turns out to have been overblown.

The latest round of tools available for this kind of work has also changed how I can share what I find. Infographics used to require either a design budget or a weekend of wrestling with software that wasn't built for people who think in arguments rather than pixels. That's changed. And in working through the longevity and generational equity data, I found myself asking a question I hadn't asked clearly before — one that the data could actually answer visually in a way prose struggles to.

The question was this: Were the generational disparities that trouble us today roughly present in 1970, or is something genuinely different now?

The infographic below is my attempt to answer that honestly.

[INFOGRAPHIC: The Generational Contract: 1970 vs. 2024]

What I was looking for

The honest version of this question has two traps. The first is nostalgia — assuming 1970 was a golden era of generational equity when it absolutely was not. The second is false equivalence — deciding that because disparities have always existed, the current ones aren't meaningfully different. Both are intellectually lazy. The data doesn't support either.

What I found is something more specific: the disparities in 1970 were real, but they were economically and politically contestable in ways the current ones are not. And a third dimension — the biological one — essentially didn't exist yet.

The economic on-ramps

In 1970, the median American home cost roughly 2.5 times the median household income. Today that ratio is 6.5 times nationally and exceeds 12 times in major metropolitan areas. That's not inflation — it's structural. Housing was financialized, zoning was captured by existing homeowners, and the asset class most responsible for middle-class wealth accumulation became a game that gets harder to enter with each passing decade.

College tuition tells a parallel story. Adjusted for inflation, public university tuition in 1970 ran roughly $2,500 per year in today's dollars. Today it runs approximately $10,000 — a 300% real increase — and the Pell Grant that once covered 75–80% of those costs now covers under 30%. Student debt as a mass generational phenomenon was, quite literally, invented by policy choices made after 1970. It wasn't an act of nature.

The wealth trajectory

The infographic shows two people — same age, same starting point — at 25 and at 65. In 1970, the trajectory to 65 was institutionally supported: a defined benefit pension that guaranteed income, home equity that compounded reliably, and an employer who absorbed the retirement risk. In 2024, the trajectory is individually managed: a 401k that rises and falls with markets, home equity that requires first crossing an entry barrier that keeps rising, and a system that transferred the risk entirely to the individual while calling it empowerment.

The top 1% held roughly 20% of U.S. wealth in 1970. They hold approximately 38% today. The middle class share of wealth has fallen from 62% to 42%. These are not inevitable outcomes of economic gravity. They are the accumulated result of specific policy decisions made by specific people over a specific period of time. The infographic names them.

The political inversion

This is the piece that surprised me most when I looked at it squarely. In 1970, young people had more political power than they do today — not less. The boomer generation represented 40% of the population, the voting age was lowered to 18 in 1971 specifically because youth political pressure had become impossible to ignore, and the active draft created existential political urgency that moved policy. The EPA was created in 1970. Title IX passed in 1972. The generation with grievances also had leverage.

Today, Gen Z and millennials together represent a larger share of the population than boomers. They carry objectively larger economic burdens. And they cast approximately half the votes proportionally that boomers do. The median age in Congress is 58. In the Senate, 65. The generation with the most at stake in the decisions being made has the least structural influence over them.

That's not a complaint. It's a data point. And it matters because it explains why the economic conditions described above persist despite being widely understood and widely criticized. Grievances without leverage don't move policy. 1970 knew that. 2024 is still learning it.

The longevity dimension — the one that's genuinely new

The life expectancy gap between rich and poor Americans in 1970 was approximately 3–5 years. The mechanism was straightforward — better nutrition, better housing, better access to care. The gap was real but bounded. Both rich and poor were operating in roughly the same biological universe.

That's changing. The gap today is 14–17 years depending on how you measure it. More importantly, it's no longer just a gap in access — it's becoming a gap in kind. GLP-1 drugs demonstrably reduce cardiovascular mortality. CRISPR-based therapies exist. Longevity optimization protocols are available to those who can afford them. We are in the early stages of a world where the wealthy don't just live somewhat longer — they live in a biologically different category.

This is what Leon Kass warned about. This is what Harari describes as "biological castes." It is not science fiction. It is the direction the current trajectory points.

What the infographic is actually arguing

The footer of the infographic carries the synthesis: In 1970, generational inequality was economic and contestable. In 2024, it is economic, political, biological, and ambient. The difference is not the size of the burden — it's whether the generation carrying it has the tools to put it down.

I believe that's true. I also believe it's not inevitable. The conditions described in this infographic were built by choices, which means they can be rebuilt by different ones. That requires political will, which requires political power, which requires the generation most affected by these conditions to vote, organize, and show up at a rate commensurate with their actual stake in the outcome.

The data refresh didn't make me more pessimistic. It made me more precise. Precision, at least, is a starting point.

The infographic was developed as part of an ongoing data refresh for this site. The underlying research report is available https://betweensiliconandsoul.com/trends/healthspan-revolution/report. The longevity and healthspan analysis that informed the biological inequality section is available https://betweensiliconandsoul.com/trends/healthspan-revolution.