Known problems without imaginable solutions

Societies of the past and present are just complex systems comprising of people and technology.

Although we have better technologies, we are not immune to the threats that faced our ancestors. If anything, our technological abilities bring more challenges. Our globalized economic system may be more likely to cause a crisis to spread.

Although there is no conclusive explanation of why civilizations collapse, there are factors that can contribute.

• Climatic change can result in disaster, resulting in crop failure, starvation, and desertification. The Akkadians, the Mayan, the Roman Empire, and many others coincided with abrupt climatic changes.
• Ecological collapse theory: When societies overdo the carrying capacity of their environment, e.g., excessive deforestation, water pollution, soil degradation, and the loss of biodiversity.
• Inequality and oligarchy: As a population increases, the supply of labor outstrips demand, workers become cheap and society top-heavy. Political violence follows.
• Complexity: Accumulated complexity and bureaucracy eventually leads to collapse. The returns from complexity eventually reach a point of diminishing returns, causing collapse.
• External shocks: War, natural disasters, famine, and plagues. The Aztec Empire was brought to its knees by Spanish invaders. Early agrarian states were passing due to deadly epidemics.
• Randomness: Collapse is often random and independent of age.