Nuclear Escalation

Heightened great-power rivalries, eroding arms-control treaties, regional wars involving nuclear states, and rapid integration of AI into military systems have pushed nuclear risks to historic highs, as reflected in the Doomsday Clock at 85 seconds to midnight. Current trends show modernizing arsenals, space-based defenses, and brinkmanship in multiple theaters creating pathways for miscalculation or rapid multi-domain escalation. A large-scale exchange would trigger nuclear winter, global famine, infrastructure collapse, and societal breakdown far exceeding recovery capacity, rendering this the most probable near-term path to civilizational end amid interconnected geopolitical and technological pressures.