Cascading Systemic Collapse

The most probable cause is a multi-system failure initiated by uncontrolled climate change, leading to simultaneous environmental, economic, and geopolitical breakdowns. Severe weather events, agricultural failure, and water scarcity would cripple global supply chains and spark mass migration, overwhelming national capacities. This would fuel intense international conflict over remaining resources while eroding trust in institutions. The convergence of these pressures—ecological stress, economic disintegration, and geopolitical strife—would overwhelm humanity's cooperative capacity, preventing a coordinated global response and leading to irreversible civilizational collapse.