When did the first cities emerge?

City-states evolved in part to organize and protect the agricultural domains upon which their societies depended. Most were controlled by kings or ruling elites, but they were also heavily influenced by a powerful priestly class that legitimized political authority by claiming—and at times perhaps merely feigning—direct contact with the gods. Mesopotamia, the “land between the rivers,” encompassing the Tigris and Euphrates, was home to some of the earliest city-state civilizations to flourish. Along with the Nile-based civilization of ancient Egypt, Mesopotamia would have an enormous influence on the development of the Western world.

One of the earliest and most important Mesopotamian cities was Ur, whose origins may date back to the sixth millennium BCE. Located in the fertile, flood-prone region of southern Mesopotamia, Ur was surrounded by defensive walls and developed an extensive network of streets, roads, temples, and drainage systems. Its prosperity was enhanced by its strategic position near the Persian Gulf, making it an important center for regional trade and maritime commerce.

One of Ur’s greatest rulers was King Ur-Nammu, who reigned from approximately 2047 to 2030 BCE. He is credited with constructing the monumental ziggurat of Ur, a massive raised religious structure with a distinctive terraced, step-like form. He also commissioned temples and undertook major improvements to the region’s irrigation infrastructure. Ur-Nammu is additionally remembered for one of the earliest known written legal codes.

At the height of its power, Ur may have had a population numbering in the tens of thousands, although precise estimates remain uncertain. Its fortunes eventually declined amid political upheaval, environmental pressures, changing trade patterns, and repeated conflicts and invasions. By the first millennium BCE, Ur had largely ceased to function as a major urban center and was eventually abandoned.

Nevertheless, Ur features prominently in biblical tradition. In the Book of Genesis, “Ur of the Chaldeans” is identified as the birthplace of Abraham, although the precise historical location referred to by the biblical text remains debated. Ur is also mentioned in the Book of Nehemiah.

Ur, however, was far from the only Mesopotamian city of importance. Eridu, Lagash, Nippur, Sippar, and Uruk all played significant roles in the political, religious, economic, and cultural history of the region. Together, these city-states formed the foundation of one of humanity’s earliest urban civilizations.

Gains, Goals, Giving, Gratitude, and Growth - The 5Gs

 Arguably the most significant question in philosophy is What does it mean to live a good life?

The answer cannot be reduced to wealth, achievement, happiness, knowledge, or even virtue alone. A meaningful life is more complicated than any one of these things.  The 5Gs grew out of my attempt to construct a holistic philosophy around these tensions. The five principles are Gains, Goals, Giving, Gratitude, and Growth.

They are not intended to be five independent techniques for self-improvement. Rather, they form an interconnected system—a kind of philosophical architecture for living. The structure is loosely inspired by the idea of the sefirot in Kabbalistic thought: a framework in which seemingly distinct qualities are connected, balanced, and ultimately directed toward a greater unity.

The 5Gs begin with the individual, but they do not end there. They begin with what we seek and move toward what we give and what we appreciate. This  ultimately leads to growth.

The first two Gs are Gains and Goals. Gains represent what we acquire through life: knowledge, skills, relationships, experiences, resources, health, confidence, wisdom, and material success. There is nothing inherently wrong with wanting more. In fact, the desire to improve one's circumstances is one of the great engines of human progress.

However one must exercise caution. Gains without direction can become accumulation for its own sake.That is where Goals enter. Goals give intention to our gains. They transform desire into direction. They require us to ask not merely, What do I want? But why do I want it? and what kind of person will I become should I achieve such an end?

A person can accumulate wealth without becoming wealthy in spirit. One can acquire knowledge without becoming wise. Indeed we can  achieve status without developing character. Achievement, by itself, does not guarantee fulfillment.

Goals therefore provide the organizing principle for Gains. The relationship works in the other direction as well. Without gains—without learning, experience, resources, and the development of our capabilities—our goals can remain nothing more than aspirations.

Gains give us capacity while goals give that capacity direction. The challenge is to make the two reinforce one another.

The third and fourth Gs are Giving and Gratitude. 

At first glance, these may appear to be virtues rather than mechanisms of personal development.However they represent a fundamental transition in the philosophy. The first two Gs are primarily concerned with the development of the self. The next two ask what happens when that developed self encounters the world.

In giving we recognize that our lives are not lived in isolation. Whatever we possess—our talents, knowledge, resources, compassion, time, or experience—can become meaningful when it is shared.

This idea has deep roots in Judaic philosophy and particularly in the Kabbalistic conception of the soul and the relationship between the individual and the greater unity. The self is not merely an isolated entity seeking its own fulfillment. We are extensions of something larger, and our actions affect the larger whole. Good deeds therefore become more than moral obligations. They become expressions of who we are.

Giving also provides an important corrective to the potentially selfish nature of Gains and Goals. If personal development becomes entirely focused on me, then development can easily become another form of narcissism. Giving asks a different question: What can I do for someone else with what I have become?

This naturally leads to Gratitude. Gratitude is the recognition that very little of what we possess is entirely of our own making. Our abilities are shaped by parents, teachers, friends  and countless people we may never know.

Even our most personal accomplishments are built upon foundations laid by others. Gratitude therefore changes our relationship with Gains. Instead of looking at what we possess and saying, I earned this; it is mine, we begin to see our gains as things for which we have some responsibility.

Gratitude transforms possession into stewardship. It also provides an antidote to one of the great psychological traps of human existence: the endless escalation of expectations.

This idea has a strong connection to Stoicism, particularly the writings of Seneca. Human beings have an extraordinary capacity to adapt to what they possess. What once seemed like a dream quickly becomes an expectation which eventually becomes  insufficient.

Gratitude interrupts that cycle.It allows us to appreciate what is present without abandoning the desire to improve what can be improved.

Thus, Giving and Gratitude form a reciprocal relationship.Gratitude recognizes what we have received. Giving recognizes what we can return.

At the center—or perhaps at the culmination—of the system is Growth.

Growth is not simply another objective alongside the other four Gs. It is the process produced by their interaction.

We gain and establish goals from those gains. This begs us to give from what we have acquired. From this giving we move toward gratitude and with that growth,

Growth means becoming. Its very nature is rooted in Western Philosophical thought.

Socrates and Plato remind us that an unexamined life is not worth living. Growth therefore requires self-examination. We must periodically stop and ask whether the person we are becoming is actually the person we want to become.

Aristotle contributes the importance of reason, logic, and the cultivation of virtue. Growth cannot simply be an exercise in willpower. We need the ability to distinguish what is true from what we merely wish were true, and what is intrinsically good from what merely feels good in the moment.

David Hume introduces another valuable discipline: reasonable skepticism. We should be willing to question our assumptions, including assumptions about ourselves. Growth requires intellectual humility.

Friedrich Nietzsche focused on the  conception of self-overcoming. The goal is not simply to accept the person we happen to be. We possess the capacity to exercise intention and will—to overcome limitations and continually recreate ourselves.

However, will alone is insufficient. Soren Kierkegaard reminds us that there are moments when reason cannot provide certainty. Life inevitably contains choices that require a leap of faith. Growth therefore requires courage: the courage to act even when the outcome cannot be guaranteed.

Viktor Frankl takes the question even deeper. In Man's Search for Meaning, he argues that human beings can endure extraordinary suffering when they can find meaning within their existence.

This introduces an essential distinction into the 5Gs:

A successful life and a meaningful life are not necessarily the same thing. Goals can produce success. Gains can produce security but meaning requires something deeper.

It necessitates knowing why we are here and what our lives are ultimately in service of. This is why I personally think of Growth as a hiatus—a pause, interruption, or space between the other four elements. Gains and Goals form one pair.Giving and Gratitude form another. 

The Kabbalistic influence is particularly important here.The concept of the soul as an extension of something greater suggests that individual development cannot be separated entirely from the development of the larger community and world of which we are a part.

The ultimate danger of any self-development philosophy is that the self becomes the only object of concern.The 5Gs attempt to avoid that trap.

When did the Agricultural Revolution begin?

Conventionally, the Agricultural Revolution is regarded as ground zero in the birth of civilization. By regimenting and increasing food production and yields, the revolution freed up time and resources for other human endeavors. This included the development of a wide range of artisan pursuits, which in turn helped galvanize a technological revolution that continues to this day.

One could argue that the Agricultural Revolution was, in a sense, the forebearer of our modern world. Yet the shift toward planned agriculture—which in the West involved the domestication and cultivation of wheat, barley, rye, and oats, along with the domestication of various livestock—was not without its disadvantages.

Some feminists, for example, view it as a pivotal moment in the emergence of patriarchy. Others argue that agriculture was environmentally destructive, resource-intensive, and increasingly dependent on rigid social hierarchies that, in some societies, facilitated or institutionalized slavery. The establishment of permanent settlements and clearly defined territories also contributed to conditions in which conflict and territorial warfare became increasingly difficult to avoid.

While some of these characteristics endured, many were more representative of the early stages of an evolving social and economic system than of agriculture itself. The Agricultural Revolution ultimately cemented the expansion and success of our species, freeing increasing numbers of people from the immediate demands of subsistence and creating the surplus upon which increasingly complex societies could be built.

In doing so, it opened the door to possibilities that are now so evident across the landscape of human achievement.

A Journey towards understanding

I have spent a substantial part of my life trying to make sense of the universe—not merely to understand how it works, but to comprehend  what it means to exist within it. It is an undertaking that can seem almost absurd in its ambition. 

A cynic might argue that such a pursuit is ultimately futile: the universe is too vast, the questions too profound, and our capacity to understand too limited. Every answer seems to open the door to another question, and every apparent certainty eventually reveals another layer of ambiguity. The journey can therefore appear less like a road leading toward a final destination and more like an endless landscape in which the horizon continually recedes.

The universe will always remain partially beyond our comprehension but  I would not renege on the journey. I have come to believe that the value of the search is not dependent upon reaching some terminal point.

A search for the truth is  rarely straight forward. I have moved back and forth between different worldviews, sometimes embracing an idea with conviction only to discover reasons to question it later. At other times, an idea I had once dismissed has returned in a different form and demanded reconsideration. 

Yet I no longer see this movement as a failure of conviction. I believe that it is part of the process of becoming intellectually honest.There is something deeply liberating about being willing to revise one's understanding and to change one's mind when confronted with better evidence . A worldview should be a framework through which we explore reality, not a prison in which we confine it.

Along the way, I have discovered much that has made me a better human being. The pursuit of knowledge has taught me humility. The more I learn, the more apparent the boundaries of my own understanding become. It has taught me patience as  the most interesting questions rarely yield immediate answers. 

There is a common expression that knowledge is power. Knowledge certainly gives us an ability to navigate the world that ignorance does not. Power is not what excites me about knowledge. What fascinates me is the process of revelation.

I am captivated by the gradual unveiling of complexity—the process by which something initially incomprehensible begins to reveal an underlying structure, and that structure, once understood, exposes something even more fundamental beneath it. There is a particular beauty in discovering that what appears chaotic is often governed by elegant principles; that what appears simple can conceal extraordinary intricacy.

Science has repeatedly provided this experience. The universe does not become less wondrous when we understand more about it. In many respects, the opposite happens. Understanding deepens the mystery.

To learn that matter is composed of atoms does not diminish the physical world what it does is opensan entirely new realm of questions. In understanding evolution life ldoes not become ess remarkable instead I see an extraordinary history stretching across billions of years. The same is true of the=e structure of the cosmos with its stars and galaxies. In venturing into such an arena I confront questions about time, space, causality, and our own improbable existence within them.

The deeper I engage with these questions, the less satisfying simplistic answers become. Reality seems to resist the desire to reduce everything to neat categories.

This  is the reason why I have never been entirely comfortable with intellectual systems that claim to possess the final answer. They can be useful maps, but a map should never be confused with the physical territory itself. The universe has no obligation to conform to the limitations of our conceptual frameworks.

I have come to appreciate the serendipity of the search—the unexpected connections, the ideas encountered by chance, the books that alter the trajectory of thought and  the questions that arise from answers to entirely different questions. A convoluted path is not necessarily an inefficient one. It may be  precisely the detour that reveals what we were not looking for.

There is a peculiar joy in discovering something you did not know you were searching for and so  I continue. I move forward as the attempt to understand has changed my personal understanding.  Every question has the potential to enlarge my  mind and every genuine discovery has the capacity to rearrange  my assumptions.

The  universe has an enigmatic element to it. Indeed our consciousness is only a fleeting phenomenon within an incomprehensibly vast cosmos. Many of the questions we ask will never receive the answers we hope for but  there is something extraordinary about being able to ask them at all.

Trump, Reagan and the Problem With Tariffs

There is a tendency in American politics to turn economic policy into tribal identity. If you support Donald Trump, you are expected to support tariffs. If you invoke Ronald Reagan, you are expected to defend free trade. But the reality is considerably more complicated, and I think four things can be true at the same time.

First, free trade has the greatest utility over the long term. Second, tariffs can have a legitimate purpose in the short term when they are used strategically against countries that refuse to play by the rules necessary for a functioning free-trade system. Third, tariffs are not a substitute for free trade and, if maintained indefinitely, can become counterproductive. Fourth, the free-trade agreements themselves have to evolve as the economic environment changes.

That last point is particularly important because it provides a useful way of understanding both Ronald Reagan and Donald Trump.

I am fundamentally a believer in free trade. When countries specialize, compete and exchange goods with relatively few artificial barriers, consumers benefit, businesses gain access to larger markets and capital and labour can be allocated more efficiently. Over time, open markets tend to produce greater prosperity than protectionist walls.

But free trade only works when the participants are actually playing by something resembling the same rules.

A country that subsidizes industries, steals intellectual property, manipulates its currency, erects non-tariff barriers or systematically discriminates against foreign competitors cannot reasonably demand that its trading partners simply keep their markets open in the name of some abstract economic ideal.

This is where tariffs can have a legitimate role. A tariff can be used as leverage. It can be a warning shot intended to persuade another country to change behaviour. It can provide temporary protection to an industry that is being subjected to unfair practices while negotiations take place. It can also be used to force an issue onto the negotiating table when diplomacy and conventional trade discussions have failed.

But there is an enormous difference between using a tariff as a negotiating instrument and making protectionism the permanent architecture of economic policy.

The first can be strategic. The second is usually self-defeating. This is where some modern conservatives have developed a rather selective memory of Ronald Reagan.

Reagan was not a protectionist. In fact, he was one of the most important American political advocates of freer trade in the modern era. His administration negotiated the United States-Canada Free Trade Agreement, which Reagan signed in 1988. The agreement eliminated tariffs between the two countries over a ten-year period and became an important foundation for the broader North American trading relationship. 

The Gipper was remarkably explicit about his philosophy. In a 1988 address on free and fair trade, he argued that protectionism would impede growth and cost jobs, while describing the U.S.-Canada agreement as the kind of trade policy that could promote growth and prosperity. 

His administration also entered a framework with Mexico concerning trade and investment in 1988. The broader North American arrangement subsequently evolved into NAFTA under George H. W. Bush and Bill Clinton. 

So if someone invokes Reagan as the patron saint of modern Republican economics while simultaneously arguing that permanent, sweeping tariffs are inherently conservative, they have some explaining to do.

Reagan's conservatism was not based on the idea that American prosperity required putting a wall around the American economy. It was based much more heavily on competition, markets and the removal of unnecessary barriers.

That does not mean Reagan believed in some simplistic version of unrestricted trade under every conceivable circumstance. He used trade remedies when he believed American interests required them. But his underlying philosophy remained unmistakably pro-trade.

At the same time, defending free trade does not mean pretending that every free-trade agreement is perfect forever.

NAFTA was negotiated in a very different economic environment from the one that exists today. The North American economy changed dramatically after the agreement was implemented. Global supply chains became more complex. China became a vastly more important economic power. Digital commerce exploded. Manufacturing patterns shifted. Labour markets changed. Intellectual property became increasingly important. The geopolitical relationship between the United States, Canada and Mexico evolved.

The obvious question, therefore, was not whether NAFTA should be preserved forever exactly as written.

The question was whether it remained fit for purpose.It was reasonable to argue that it did not.

And this is where Donald Trump deserves more credit than some of his critics are willing to give him. The Trump administration negotiated the United States-Mexico-Canada Agreement, or USMCA, which replaced NAFTA. The agreement updated rules involving automobiles, labour, intellectual property, digital trade, agriculture and other areas of the North American economy. The Trump administration itself described USMCA as a modernization of the North American trading relationship. 

That is an important distinction. Trump did not simply blow up North American trade and walk away. His administration renegotiated the framework and produced a new agreement. One can reasonably criticize the manner in which Trump conducted those negotiations while acknowledging that the underlying objective—modernizing an aging trade agreement—had merit.

Where I become much more skeptical of Trump is when tariffs cease to be a leverage and become an end in themselves.

There is a seductive simplicity to tariffs. A politician can say, “They are taking advantage of us, so we will tax their goods.” It sounds decisive. It sounds patriotic. It sounds like someone is finally fighting back.

But economics doesn't care how satisfying a policy sounds. Tariffs are ultimately taxes on imports. Depending on market conditions, the burden can be distributed among foreign producers, domestic importers, businesses and consumers. And when another country retaliates, the problem compounds. Your tariff becomes their tariff, their tariff becomes your response, and before long both sides are engaged in a trade war that nobody necessarily intended when the first measure was imposed.

That is the danger. A tariff should therefore have a purpose. What behaviour are we trying to change and  what concession are we seeking? Do we have an exit strategy and what happens when the other country retaliates? Also what happens when the tariff has achieved its objective?

If the answer to those questions is unclear, then we are no longer talking about strategic trade policy. We are talking about protectionism.

This is why I don't think the choice has to be “Trump or Reagan.” There is a legitimate synthesis available.

Reagan was right that free trade produces enormous long-term benefits and that protectionism can ultimately damage the economy it is intended to protect.  Trump was right that free-trade agreements cannot be treated as sacred documents immune from renegotiation and that countries which violate the spirit or rules of the trading system should face consequences.

Both propositions can be true.The mistake is assuming that because tariffs can occasionally be useful, tariffs are therefore inherently good.

They aren't. A hammer is useful when you need to drive a nail. That doesn't mean you should use it to fix everything in the house. Tariffs are much the same.

There is also a deeper philosophical point here.Conservatives traditionally believe in competition, markets, limited government and skepticism toward politicians who claim they can engineer economic outcomes from Washington.

Permanent protectionism cuts against much of that philosophy. If an American company can only survive because the government prevents consumers from buying a cheaper foreign alternative, that is not necessarily evidence of economic strength. Sometimes it is evidence that the company is not competitive.

The better conservative answer is usually to ask why. Is the tax system distorting investment? Are regulations making domestic production unnecessarily expensive? Are foreign governments cheating? Are American companies failing to innovate?

The lesson I take from Reagan and Trump is therefore not that one was right and the other was wrong. It is that economic policy requires both principles and pragmatism.

Free trade should remain the long-term objective because open markets, competition and voluntary exchange generally produce greater prosperity. But free trade cannot survive if countries systematically abuse the system. Tariffs can therefore be useful as a temporary weapon to enforce the rules and bring reluctant partners to the negotiating table.

However a weapon is not a strategy. The ultimate objective should be to return to a functioning trading system in which tariffs are unnecessary because the participants have agreed to—and actually follow—rules that allow them to compete fairly.

That is essentially what happened with NAFTA. The agreement wasn't perfect, and the economic world changed. Trump was right that it needed to be renegotiated. The result was USMCA, a modernized framework rather than the abandonment of North American free trade.

It is the model worth pursuing .Not blind free trade or permanent protectionism. Economic nationalism for its own sake is a flawed approach. Tariffs are not a vehicle to highlight political performance. 

The goal should be free and fair trade. Free trade when the rules are respected and tariffs when they are necessary to enforce those rules. After this you need negotiations,

Trump adhered to all of this in his first term. He appears to have lost the message in the second.

On Epistemology

 I am prepared to admit, with some sense of pride, that I am a lover of knowledge. But that affection comes with a condition: I want to know that what I accept as knowledge is, in fact, knowledge. The moment we begin to ask how we can distinguish knowledge from belief, assumption, or error, we find ourselves standing at the threshold of epistemology.

Philosophy recognized this problem almost from the beginning of its Athenian tradition. The earlier Milesians had a more rudimentary conception of epistemological questions. Their primary concern was not so much how we know as what exists. In this respect, they might be regarded as the first theoretical physicists, searching for the underlying substance or principle from which the world could be understood.

The epistemological problem becomes more difficult once we turn from the nature of things to the reliability of our knowledge of them. One response is scepticism: reject everything that cannot be established with certainty and then attempt to build knowledge upward from some irreducible foundation. For Descartes, that foundation was the activity of his own mind—the famous realization that, even if he doubted everything else, he could not doubt that he was engaged in thinking. Others have placed their confidence in the fundamental axioms of mathematics and logic. Still others have put their faith, and it is worth emphasizing that it is a form of faith, in the reliability of our senses.

None of these approaches has been universally accepted. Some thinkers have instead looked beyond both rationality and experience, proposing an external metaphysical explanation that transcends the tools by which we ordinarily understand the world. Yet this approach seems, at least to me, somewhat anathema to the Western philosophical tradition, which has generally sought to discover the grounds of explanation within reason itself rather than appealing to something beyond it.

What strikes me most, however, is not simply the variety of these approaches but the difficulty philosophers seem to have in constructing something durable once they have taken another position apart. Many thinkers are remarkably good at demolishing intellectual structures but considerably less successful at building stronger ones in their place. There is something inherently critical about the Western philosophical tradition—a tendency that can sometimes feel as though it is driven more by destruction than construction.

Perhaps this should not surprise us. For more than two thousand years, philosophers have challenged, refined, rejected, and rebuilt one another's ideas. Yet, after all that intellectual labour, I am not convinced that we are fundamentally further ahead on some of the great questions of epistemology than Socrates, Plato, and Aristotle were. We have accumulated an enormous vocabulary for describing the problems. But does having more terminology necessarily mean that we understand the problems any better?

This is not to suggest that human intellectual progress has been illusory. Scientific progress is undeniable, and there have been significant advances in other areas of philosophy, particularly in ethics and political thought. My reservation is narrower: I am not yet convinced that epistemology itself has progressed in the same meaningful sense.

Perhaps the difficulty lies partly in the nature of the subject. Epistemology may be one of those fields that resists any simple or absolute system of measurement. We cannot easily determine its progress by counting discoveries, establishing universally accepted theories, or arriving at definitive answers. Its value may instead lie in the relationships it establishes with other disciplines—in showing us how science, mathematics, logic, perception, language, metaphysics, and even ordinary human experience depend upon, and challenge, one another.

If this is the case, then perhaps epistemology should not be judged as an isolated discipline at all. Its strength may lie precisely in its refusal to remain isolated. It occupies the space between our various ways of knowing, questioning the foundations upon which each rests and exposing the connections between them.

That possibility interests me. Perhaps the apparent lack of progress in epistemology is not evidence of failure but a consequence of the peculiar role the discipline plays. Rather than constructing a final edifice of knowledge, epistemology may be the discipline that continually examines the foundations of every edifice we build.

That is a possibility worth investigating further.

What will future historians call the twentieth century?

We tend to think of it as the century of extraordinary progress: the century of science, technology, mass education, longer lives, women’s rights, antibiotics, aviation, space exploration, computing, and unprecedented economic growth. All of that is true. But it is only part of the story.

The twentieth century was also a period of extraordinary violence, social upheaval, ideological conflict, consumerism, mass communication, financial transformation, and an increasingly sophisticated ability to manipulate information. It may therefore acquire a very different collection of names from those we would instinctively choose today.

Not just the west but the world itself  witnessed an extraordinary expansion of wealth, but it also saw the increasing elevation of material accumulation as a measure of success. Economic growth became not merely a means of improving human welfare but, increasingly, an objective in itself.Consumerism transformed societies. Advertising encouraged people to define themselves through what they purchased, while financial systems became increasingly sophisticated at converting almost every aspect of human activity into something that could be bought, sold, or speculated upon.

Future historians may look back and conclude that we became extraordinarily good at creating wealth—and extraordinarily poor at deciding when enough was enough.

However Two world wars, genocide, totalitarian regimes, nuclear weapons, and industrialized mass killing all emerged from societies that simultaneously regarded themselves as increasingly rational and civilized. That  contradiction could be one of the century's defining characteristics.

We developed the ability to send humans into space while perfecting ways of destroying millions of people on Earth. We expanded our understanding of psychology while creating political systems capable of manipulating entire populations.

Future generations may reasonably wonder whether the twentieth century was an age of rationality—or an age in which rationality became extraordinarily effective at serving irrational purposes.

For much of human history, geography imposed powerful limitations on human interaction. The twentieth century began to dismantle those barriers.Steamships, railways, aircraft, telephones, radio, television, and eventually digital communications compressed the world. Political borders remained, but their ability to isolate populations weakened. The century therefore began the transformation of humanity from a collection of relatively isolated societies into something resembling a single, interconnected system.

Mass production created something historically unusual: enormous numbers of people with access to goods and entertainment that previous generations could scarcely have imagined. Popular culture became a global force. Music, cinema, sport, fashion, celebrity, advertising, and eventually television occupied an increasing proportion of everyday life.

Newspapers reached enormous audiences. Radio brought voices into people's homes. Cinema created shared visual experiences. Television eventually placed moving images into virtually every living room. For the first time, governments, corporations, political movements, and individuals could communicate simultaneously with millions of people. This transformed politics and culture—but it also transformed persuasion.

The First and Second World Wars transformed warfare from conflicts largely fought between armies into struggles in which entire populations became targets and participants. Industrial production, science, transportation, communications, and bureaucratic organization were all harnessed to the machinery of war.

The ultimate expression of this development was the atomic bomb. Humanity acquired, for the first time, the technological ability to destroy civilization on a global scale.

The twentieth century therefore became the century in which war ceased to be merely a contest between nations and became a potential threat to the survival of humanity itself.

It was also an age of resistance.Workers, women, racial minorities, students, colonial populations, political dissidents, and countless other groups challenged established authorities and social structures. Civil rights movements, anti-war demonstrations, independence movements, feminism, environmentalism, and student rebellions all contributed to a growing rejection of inherited authority.

For centuries, wealth had been closely associated with physical things: land, livestock, precious metals, buildings, and tangible goods. During the twentieth century, however, an increasing proportion of wealth became abstract. Money increasingly became numbers recorded in ledgers rather than objects that could be physically possessed. Credit, stocks, bonds, derivatives, electronic transfers, and increasingly complex financial instruments created enormous quantities of what might be called virtual wealth.

The twenty-first century would take this process even further, but its foundations were laid during the twentieth.  Future historians may therefore see the period as the beginning of the age in which wealth became increasingly detached from anything tangible.

Governments measured progress through production, income, consumption, employment, and gross domestic product. Growth became synonymous with prosperity, and prosperity became one of the principal measures of successful government. The century dramatically expanded humanity's ability to extract resources, transform landscapes, consume energy, and produce goods. It also began to reveal the environmental consequences of doing so.

Future historians may therefore see the twentieth century as the period when humanity became obsessed with the idea that tomorrow must always be larger than today.

So, What Should We Call It?

No single name will ever adequately describe the twentieth century.

It was an Age of Greed and an Age of Insanity. It was the Era of Total War and the Era of Protest. In addition it was the  beginning of mass media, global interconnectedness, virtual wealth and rapid economic growth,

We learned how to split the atom, leave the planet, communicate across oceans, manipulate genes, and build machines capable of extraordinary computation.

However  we never quite solved the older problem of What should we do with all of these gains? We may never.

This may be what the twentieth century was really about—the century in which humanity acquired extraordinary power without acquiring an equally extraordinary understanding of how to use it.