Human history spans 200,000 years, marked by a significant shift from survival in the natural world to today’s entangled, complex socio-technical world. Our brains, shaped for simpler times, struggle to navigate this new complexity. To survive, we must adapt our thinking to better understand and manage the interconnected challenges of today’s world.
Inroduction
I have looked at the history of knowledge. Here, I summarise that history and explain why I think we have entered a new, complex era of human existence.
200,000 years of human history
We (Homo sapiens) emerged from our hominid predecessors in Africa some 200,000 years ago.
For the first 150,000 years, we lived as hunter-gatherers like our cousins, the apes. We lived day to day, and our behaviors changed only a little over time.
Then around 70,000 years ago, a remarkable shift took place—speech and language significantly improved, sparking what is known as the cognitive revolution or cultural big bang.
With the cultural big bang came a great leap forward that allowed us to pass down our knowledge from generation to generation much faster through cumulative cultural evolution and not the biologically slower process through our genes.
Some 40,000 years later, we made another enormous leap with the Neolithic Revolution when we transitioned from a nomadic hunter-gatherer lifestyle to farming and settlement (circa 11,000 years ago).
A little later, early cities emerged around 7,500 BCE, and Sumer, the first known civilization, developed about 4,100 BCE.
Over the following centuries, society and technology co-evolved, biological evolution having stopped with the cognitive revolution.
Then, 500 years ago, during the 16th and 17th centuries, the Scientific Revolution, which laid the foundation for the Enlightenment, drastically changed scientific thinking. The Scientific Revolution and the Enlightenment were massive leaps forward in the evolution of our knowledge and how we thought about the world and our place in it.
Two hundred years later, in the late 18th century, circa 1760, the pace of change picked up with the dawn of the first industrial revolution, closely followed by the second industrial revolution.
Then, a mere 75 years ago, at the end of the second world war, change dramatically accelerated with the birth of the information/digital revolution (the third industrial revolution) and is further accelerating today with Industry 4.0 (the fourth industrial revolution).
This cumulative socio-technical-economic change has created a modern world vastly different from the hunter-gatherer world in which we evolved and the world of our farming ancestors only a few hundred years ago.
Two Worlds
Since the cultural big bang, the changes over the last 70,000 years have been so significant that we can consider ourselves living in two worlds, World #1 and World #2.World #1 is the old world, the natural world in which we lived and evolved for 150,000 years.
World #2 is the new world, the socio-technical-economic world we have constructed over the last 70,000 years, particularly the 250 years since the first industrial revolution and the previous 75 years since the third industrial revolution.
In World #1, direct relationships between cause and effect dominate, while in World #2, non-linear relationships between cause and effect dominate.
In the context of the Cynefin domains, World #1 is a simple or complicated world, while World # 2 is a complex one.
Both worlds co-exist, but most of the global population lives in World #2. For example, over 55% of the world’s population lives in urban areas, which is expected to increase to 68% by 2050.
Human activity’s impact on the planet has been so great that it has been proposed that we have entered a new geological and environmental era known as the Anthropocene.
Increasing Complexity in Human Societies: A Historical Comparison
This table presents a comparative analysis of four significant periods in human history: 3000 BC, 1 CE, 1750, and 2024, highlighting the increasing complexity of various dimensions of society over time. Each of these years was chosen to represent a pivotal moment in the development of human civilization, illustrating key shifts in technology, politics, economy, social structure, and other critical areas.Dimension | 3000 BC (Simplicity) |
1 CE (Moderate Complexity) |
1750 (Increased Complexity) |
2024 (High Complexity) |
---|---|---|---|---|
Global Politics | Early city-states and tribal societies, no centralized governance | Dominance of large empires (Roman, Han), regional kingdoms, early international trade | Emerging nation-states, colonial empires, early modern diplomacy | Numerous countries, complex international relations, global governance (UN, EU, NATO), multipolar world |
Technology | Stone and bronze tools, basic agriculture, early metalworking | Advanced engineering (aqueducts, roads), early mechanical devices, widespread iron use | Early industrial technology (steam engines, mechanized looms), basic scientific instruments | Advanced technology (internet, smartphones, AI, space exploration, renewable energy technologies) |
Communication | Oral traditions, early writing (cuneiform, hieroglyphs) | Handwritten manuscripts, scrolls, oral communication, postal systems | Print media widespread (newspapers, books), early postal systems, telegraphs emerging | Instant, global (social media, video calls, real-time news, 5G/6G networks, satellite communication) |
Economy | Subsistence agriculture, barter systems, local trade | Agrarian economies with regional trade, coinage, beginnings of globalization (Silk Road) | Mercantile economies, early capitalism, global trade networks expanding, colonial exploitation | Highly globalized, digital economies, complex financial systems, cryptocurrency, e-commerce |
Transportation | On foot, basic boats, early domesticated animals (horses, donkeys) | Animal-powered transportation, ships, chariots | Sailing ships, horse-drawn carriages, early railways, canal systems | Advanced and varied (high-speed trains, electric and autonomous cars, global aviation, space travel) |
Social Structure | Small, kin-based groups, early hierarchies, emerging cities | Rigid class systems (nobility, commoners, slaves), caste systems, feudalism | Structured hierarchies, growing middle classes, colonial societies | Fluid social dynamics, diverse and multicultural societies, high social mobility, complex social issues |
Healthcare | Primitive medicine, natural remedies, shamanistic practices | Basic medical knowledge, herbal remedies, early surgery | Development of modern medicine, discovery of vaccines, early hospitals | Advanced healthcare systems, genetic engineering, personalized medicine, telemedicine, AI diagnostics |
Education | Informal, oral traditions, practical skill transfer | Elite education (philosophy, rhetoric, science), religious institutions | Emergence of formal education systems, universities, wider literacy | Universal education, online learning, diverse fields of study, lifelong learning, digital education platforms |
Information Availability | Extremely limited, oral traditions, early symbolic writing systems | Manuscripts, scrolls, slow dissemination, libraries | Widespread print (books, newspapers), increasing access to information | Information overload with internet, 24/7 news cycles, social media, vast online databases, misinformation |
Environmental Awareness | Basic understanding based on survival needs, limited impact awareness | Limited understanding, resource use primarily for survival and conquest | Beginning awareness (industrial impacts, early conservation efforts) | High awareness, climate change activism, complex sustainability efforts, environmental regulations |
Military | Simple weapons (stone tools, basic bows, clubs), small-scale conflicts | Professional armies, complex formations (legions, phalanxes), siege engines | Standing armies, naval power, early modern firearms, fortifications | Hybrid warfare (cyber, drones, AI-assisted strategies, autonomous weapons, nuclear capabilities) |
Daily Life | Agrarian, hunter-gatherer lifestyles, small communities, slow pace | Agrarian, urbanization in empires, regional cultures, religious influence | Mix of rural and urban lifestyles, emerging consumer culture, colonial influences | Complex, fast-paced, consumer-driven, digital lifestyles, highly interconnected, urbanized |
Financial Systems | Barter and trade of goods, early precious metal usage, no formal currency systems | Early coinage, localized economies, beginnings of banking | Expansion of global trade, beginnings of modern banking, gold and silver standards | Digital currencies, complex financial instruments, global markets, blockchain technology |
Cultural Exchange | Limited to local trade, migration, and oral storytelling | Increased through conquest, trade, and religious missions (Silk Road, Roman roads) | Expanded by colonialism, global exploration, increased travel, print culture | Virtual exchange, global access to diverse cultures through the internet, mass tourism, digital media |
Government Surveillance | Nonexistent; local governance based on community consensus or tribal leaders | Minimal surveillance, physical spies, local informants | Emerging state surveillance, secret police, basic intelligence networks | Advanced surveillance (CCTV, online monitoring, AI algorithms, facial recognition, mass data collection) |
3000 BC: The Dawn of Civilization
In 3000 BC, human societies were in the early stages of forming complex communities. This era, often referred to as the dawn of civilization, saw the rise of the first city-states and tribal societies. Societies were predominantly agrarian, relying on subsistence farming, basic tools, and localized barter systems. Social structures were relatively simple, centered around kinship and community consensus, with minimal centralized governance. Communication was primarily oral, with early forms of writing like cuneiform just beginning to emerge. The simplicity of this era reflects the nascent stages of organized society, where survival and basic needs were paramount.1 CE: The Classical Age
By 1 CE, societies had evolved into more complex forms, marked by the dominance of large empires such as the Roman Empire and the Han Dynasty. This period is characterized by significant advancements in engineering, military organization, and cultural exchange, facilitated by extensive trade networks like the Silk Road. Social hierarchies became more rigid, with clearly defined class systems, while communication methods improved with the development of postal systems and written manuscripts. The growing complexity of this era is evident in the increasing interconnectedness of regions and the formalization of political, economic, and social structures.1750: The Industrial and Enlightenment Era
The year 1750 marks a critical turning point in history with the onset of the Industrial Revolution and the Enlightenment. This period is characterized by rapid technological advancements, such as the invention of the steam engine and mechanized looms, which revolutionized production and transportation. The emergence of nation-states, colonial empires, and early modern diplomacy further complicated global politics. Economically, mercantile systems gave way to early forms of capitalism, expanding global trade networks and beginning colonial exploitation. Socially, there was a shift towards more structured hierarchies and the growth of a middle class. This era reflects a significant leap in complexity, driven by industrialization, scientific progress, and the spread of Enlightenment ideals.2024: The Digital and Global Age
By 2024, the world has reached unprecedented levels of complexity. Technological advancements have accelerated with the rise of the internet, smartphones, artificial intelligence, and space exploration. Communication is instant and global, thanks to digital platforms and advanced networks. The economy is highly globalized and digitized, with complex financial systems, cryptocurrencies, and e-commerce transforming traditional economic models. Social dynamics have become fluid and multicultural, with increased mobility and diversity. The challenges of this era, such as climate change, cybersecurity, and geopolitical tensions, require sophisticated solutions and global cooperation. The complexity of 2024 reflects the culmination of centuries of development, showcasing both the achievements and challenges of modern civilization.Why These Dates?
The chosen dates—3000 BC, 1 CE, 1750, and 2024—represent critical junctures in the evolution of human society. Each period marks a significant shift in how societies were structured, governed, and interacted with one another. From the early formation of cities and empires to the transformative effects of industrialization and the digital age, these dates provide a comprehensive overview of the trajectory of human civilization. They illustrate the progression from simple, localized societies to the highly interconnected, technologically advanced, and globally complex world of today. This table serves as a snapshot of humanity's journey toward increasing complexity and the continuous evolution of our social, economic, and political landscapes.The Age of Entanglement
The idea that we live in an entangled world is particularly relevant in World #2. Here, the intricate web of connections between technology, society, and the environment creates a landscape where traditional, reductionist approaches to problem-solving are insufficient. In this complex world, everything is interconnected—every action ripples through the system in unforeseen ways, leading to outcomes that are difficult to predict or control.
Understanding the entanglement of systems within World #2 forces us to rethink how we approach challenges. Just as the Enlightenment brought a shift in thinking during its time, recognizing the entangled nature of our modern world suggests a need for an updated perspective—one that embraces complexity and integration over simplicity and separation.
This entanglement between World #1 and World #2 reflects the tension between our evolutionary predispositions and the demands of our constructed environment. While our brains are wired for the simpler dynamics of World #1, we now live predominantly in World #2, where those same dynamics no longer suffice. As such, navigating this entangled, complex landscape requires us to develop new ways of thinking and acting that are adaptive, integrative, and attuned to the interconnected realities of our time.
We still have old World #1 brains
In World #1, our top priority was survival, eating and not being eaten, winning in warfare, and mating.
Although life was difficult, it was simple. Straightforward cause-and-effect relationships dominated. We lived in the here and now from day to day.
Think of other members of the human family tree — apes — such as the chimpanzee or the bonobo. In World #1, our lives were not so different.
We lived in the natural world in small bands of about 25 people and tribes of 500 or more. Our lives were short, and we had few choices.
World #1 was the world in which our brains were shaped by evolution. Evolution wired our brains for short-term tribal thinking—to think in the moment. Our brains have not changed significantly in the last 50,000 years since we started our journey into World #2.
Fifty thousand years is not long in evolutionary terms, and it is not surprising that our modern-day brains have not evolved to handle the dynamics and complexity of World #2.
In the entangled societies of World #2, tribal thinking no longer serves us well. We need to rethink our thinking.
Two Worlds | Podcast Generated by NotebookLM (source)This is the source material used to create this podcast.
To navigate the complexities of World #2, we must consciously adapt our thinking and decision-making beyond our tribal instincts shaped by World #1. This requires embracing new approaches that align with our modern world’s interconnected and dynamic nature, ensuring we thrive in the socio-technical-economic environment we’ve created.
Posts that link to this post
- The Global Information Ecosystem We live in a vast sea of information
- From Enlightenment to Entanglement Adapting to the complexities of an interconnected world
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