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01 / 05
People Are the Ultimate Existential Resource

Blog Post | Population Growth

People Are the Ultimate Existential Resource

Even if technological advances help mitigate the problems with a shrinking population, young people are an irreplaceable existential resource.

Summary: The decline in global birth rates has shifted concerns from overpopulation to potential economic and existential crises. Economist Julian Simon posited that humans are the ultimate resource due to their abilities to solve scarcity problems, but it’s also their need for meaningful existence that drives societal progress. As birth rates fall, it’s crucial to recognize the profound role of family and social connections in providing purpose and motivating efforts that enhance human flourishing and ensure a better future for coming generations.


Birth rates dropping below replacement level in much of the world has become a growing concern. However, this is a relatively recent worry. For a long time, the rapid growth of the world’s population led many experts to fear the depletion of our natural resources and the potential collapse of civilization. The late economist Julian Simon did not share these overpopulation concerns. Instead, he argued that humans are the ultimate resource, proposing that more humans would actually help solve our scarcity problems. His reasoning was that more humans means more brain power, which in turn leads to more discoveries, creations, and innovations. This insight is crucial. As Marian Tupy and Gale Pooley detail in their excellent book, Superabundance, our species has demonstrated a remarkable ability to leverage our cognitive capacities to solve scarcity issues throughout history.

However, there is another crucial factor to consider when thinking about what makes humans the ultimate resource. The cognitive capacities that make us an intellectual species, combined with our distinctly human self-conscious emotions, also make us an existential species driven to find and maintain meaning in life. We don’t merely seek to survive; we want our lives to matter. We aspire to play a significant role in a meaningful cultural drama that transcends our individual existence. This deep-seated need for meaning is a fundamental aspect of the human experience, shaping our goals, decisions, and actions. Critically, our need for meaning plays a central role in individual and societal flourishing.

Meaning is more than a feeling; it is a self-regulatory and motivational resource. When we find meaning in life, it provides us with a compelling reason to get up each day and strive to do our best, even in the face of challenges and setbacks. Inevitably, we will encounter failures, make mistakes, and have moments of weakness when we act impulsively or allow bad habits and patterns of living to shift our attention away from the goals and actions that would make life more fulfilling. We may also let our character flaws derail us from time to time. However, when we perceive our lives as meaningful, we are more likely to believe that we have a strong reason to work harder at self-improvement, to course correct when needed, and to persistently pursue our potential while prioritizing what matters most to us. Indeed, research has shown that the more people view their lives as full of meaning, the more they tend to be physically and mentally healthy, goal focused, persistent, resilient, and successful in achieving their objectives.

Crucially, our need for meaning is inherently social. No matter what specific activity we are engaged in, we derive the greatest sense of meaning from it when we believe that it has a positive impact on the lives of others. 

Years ago, I was invited to give a presentation to professors on how to improve their public outreach efforts. During the Q&A session, a math professor expressed his doubts about the relevance of my presentation to his field. He said that it’s easy for me, as a psychologist, to engage the public because people are inherently interested in the topics psychologists study. However, he wondered how he could get people interested in hearing about math. He noted that most people find it boring. I asked him why he became a math professor. He responded that he finds the work intrinsically interesting and really enjoys sharing that passion with eager students. I then asked him why that matters – why is it important to mentor the next generation of mathematicians? He replied, “Because math is fundamental to the continuation of civilization.” As he said those words, I could see the realization dawn on him that my presentation was, in fact, applicable to his field. The central theme of my talk was that for academic scholars to succeed in public outreach, they need to be able to articulate the social significance of their work to non-experts. 

However, being able to identify the social significance of one’s work isn’t just about public outreach; it’s also crucial for one’s own ability to find personal fulfillment in their work. I believe that one of the reasons people lose passion for their work, even if they are highly successful, is that they don’t believe it makes a real difference in the world. Regardless of the nature of their work, whether paid or unpaid, people are most likely to derive meaning from it when they recognize its social significance. For instance, research shows that employees are more likely to find their work meaningful when they focus on how it positively impacts the lives of others, rather than on how it advances their own career goals. 

I’m emphasizing the social nature of meaning because it is essential to understanding why humans are the ultimate existential resource. The motivational power of meaning is derived from our connections with other humans and the impact we have on their lives. They are the existential resource that inspires us to tackle significant challenges and advance human progress, ensuring that future generations can enjoy a better life than we do today. 

In an article published earlier this week by USA Today, I discuss this issue in the context of the current birth rate decline, focusing on the special role that family plays in our search for meaning. Individuals can certainly live meaningful lives without having children or close family relationships. There are many paths to achieving social significance by making contributions through entrepreneurship, science, art, education, mentorship, leadership, service, and philanthropy. However, for the majority of people, family remains an essential component of a meaningful life, providing a deep sense of belonging and continuity that extends beyond one’s own existence.

Current conversations about the baby bust are largely dominated by concerns over the economic and policy challenges it presents. As our population ages, we may face worker shortages, increased strain on social safety net programs, and economic stagnation. While these challenges are very important and demand our attention, it is equally crucial that we do not overlook the profound personal and existential consequences of this demographic shift.

Even if you believe that advances in automation, artificial intelligence, or other technological innovations will help mitigate the problems caused by a shrinking population, it is crucial to recognize that young people are an irreplaceable existential resource. They are the reasons we care about the future, providing us with the opportunity to achieve a level of social significance that transcends our brief mortal lives. No machine can replace the profound sense of meaning that raising the next generation of humans provides.

While human intelligence makes the creative, innovative, and industrious activities that lead to abundance possible, it is the meaning in life we derive from mattering to others that gives us the fundamental reason to pursue these activities in the first place.

This article was published at Flourishing Friday on 6/7/2024.

KQED | Urbanization

California Forever Clears First Hurdle in Suisun City Annexation

“California Forever’s proposed mega-development has crossed its first hurdle in its bid for annexation by Suisun City. After receiving the company’s development application earlier this month, City Manager Bret Prebula said Tuesday he and other officials deemed it complete.

Now, city staff will prepare for the next step in the lengthy annexation process: the environmental impact report…

The company’s application remains largely similar to its original plan, but instead of the project becoming a new city in unincorporated Solano County, the mega-development could now be located largely within Suisun City, if city and county leaders eventually approve the annexation deal. Rio Vista leaders have also expressed interest in annexing a portion of California Forever’s plan, but those details have yet to be publicly unveiled.”

From KQED.

Blog Post | Environment & Pollution

Climate Litigation Can’t Fix the Past, but It Can Hinder the Future

Dealing with climate change requires technological innovation and economic growth, not legal warfare between nations.

Summary: The International Court of Justice has suggested nations could be held liable for historic greenhouse gas emissions, opening the door to lawsuits over centuries of industrial activity. Yet this approach risks punishing the very innovations that lifted billions out of poverty and advanced human health and flourishing. Lasting progress on climate challenges will come not from courtroom battles, but from technological solutions and continued economic development.


The International Court of Justice’s advisory opinion purporting to establish legal grounds that would allow nations to sue one another over climate damages represents judicial overreach that ignores economic history and threatens global development. While the opinion was undeniably legally adventurous, the framework it envisages would be practically unworkable as well as economically destructive.

The ICJ’s ruling suggests countries can be held liable for historical emissions of planet-warming gases. That creates an accounting nightmare that no legal system can resolve. How does one calculate damages from coal burned in Manchester in 1825 versus emissions from a Beijing power plant in 2025? How does one stack up the harm caused by a warming world against the benefits of industrialization?

Britain began large-scale coal combustion during the Industrial Revolution, when atmospheric CO2 concentrations were 280 parts per million and climate science did not exist. Holding Britain liable for actions taken without knowledge of consequences violates basic principles of jurisprudence. The same applies to the United States, whose early industrialization occurred during an era when maximizing economic output was considered unambiguously beneficial to human welfare.

Critics of historical emissions ignore what those emissions purchased. British coal combustion powered textile mills that clothed much of the world, steam engines that revolutionized transportation, and factories that mass-produced goods previously available only to elites. American industrialization followed, creating assembly lines, electrical grids, and chemical processes that form the backbone of modern civilization.

These developments were not zero-sum exercises in resource extraction. They created knowledge, infrastructure, and institutions that benefited everyone. The steam engine led to internal combustion engines, which enabled mechanized agriculture that now feeds 8 billion people. Coal-powered steel production made possible skyscrapers, bridges, and the infrastructure that supports modern cities, where most humans now live longer, healthier lives than their ancestors.

The data on human welfare improvements since industrialization began are explicit. Global life expectancy increased from approximately 29 years in 1800 to 73 years today. Infant mortality rates fell from over 40 percent to under 3 percent. Extreme poverty, defined as living on less than $2.15 per day in purchasing power parity terms, declined from over 80 percent of the global population in 1800 to under 10 percent today.

Nutrition improved dramatically. Caloric availability per person has increased by roughly 40 percent since 1960 alone, while food prices relative to wages fell consistently. Height, a reliable indicator of childhood nutrition, increased significantly across all regions. Educational attainment expanded from literacy rates below 10 percent globally in 1800 to over 85 percent today.

These improvements correlate directly with energy consumption and industrial development. Countries that industrialized earliest experienced these welfare gains first, then transmitted the knowledge and technology globally. The antibiotics developed in American and European laboratories now save lives worldwide. The agricultural techniques pioneered in industrialized nations now feed populations that would otherwise face starvation.

The International Court of Justice’s liability framework threatens to undermine the very mechanisms that created these welfare improvements. Innovation requires investment, which requires confidence in property rights and legal stability. If successful economic development subjects countries to retroactive liability, the incentive structure tilts away from growth and toward stagnation.

Consider current developing nations. Under this legal framework, should India or Nigeria limit their industrial development to avoid future liability? Should they forgo the coal and natural gas that powered Western development? That creates a perverse situation where the legal system penalizes the exact processes that lifted billions from poverty.

The framework also ignores technological solutions. The same innovative capacity that created the Industrial Revolution is now producing renewable energy technologies, carbon capture systems, and efficiency improvements that address climate concerns without sacrificing development. Market incentives and technological progress offer more promise than legal blame assignment.

Which emissions count as legally actionable? All anthropogenic CO2 remains in the atmosphere for centuries, making every emission since 1750 potentially relevant. Should liability begin with James Watt’s steam engine improvements in 1769? With the first coal-fired power plant? With Henry Ford’s assembly line? The temporal boundaries are arbitrary and politically motivated rather than scientifically determined.

Similarly, which countries qualify as defendants? The largest current emitters include China and India, whose recent emissions dwarf historical American and British totals. China alone now produces more CO2 annually than the United States and Europe combined. Any coherent liability framework must address current emissions, not just historical ones.

And where would the money go? This aspect of the case was brought up by Vanuatu. If the island nation receives compensation from the UK and the US, should it not be obliged to pay the British and the Americans for a plethora of life-enhancing Western discoveries, including electricity, vaccines, the telephone, radio, aviation, internet, refrigeration, and navigation systems?

Climate adaptation and mitigation require technological innovation and economic growth, not legal warfare between nations. The countries that industrialized first possess the technological capacity and institutional knowledge to develop solutions to today’s problems. Channeling resources toward litigation rather than innovation represents a misallocation that benefits lawyers while harming global welfare.

The ICJ opinion reflects wishful thinking rather than practical policy. Legal frameworks cannot repeal economic reality or reverse the historical processes that created modern prosperity. Instead of seeking retroactive justice for emissions that enabled human flourishing, policymakers should focus on technologies and institutions that sustain development while addressing environmental concerns. The alternative is a world where legal systems punish success and innovation while offering nothing constructive in return.

The original version of this article was published in National Review on 8/12/2025.

Nature | Noncommunicable Disease

Cancer and Heart Disease Death Rates Have Declined in 150 Countries Since 2010

“The chance of dying from chronic illnesses such as heart disease, cancer and diabetes declined in four out of five countries between 2010 and 2019, finds a study of 185 countries published in The Lancet today [9/10/25].

Non-communicable diseases (NCDs) are the leading cause of death globally. The United Nations has set the goal of reducing deaths from these diseases by one-third by 2030.

The latest study is the first to investigate the change in NCD mortality across countries. It finds that, from 2010 to 2019, the probability of dying from an NCD before the age of 80 fell in 152 countries for women and in 147 countries for men.”

From Nature.