Should we worry about the end of the world?

Humanity faces four primary existential risks: nuclear war, climate change, pandemics, and artificial intelligence. These threats are largely human-made, shifting the focus from natural disasters like super volcanoes—which operate on timescales too vast to pose immediate danger—to our own technological and political choices. Artificial intelligence, in particular, presents a "Fantasia" scenario where autonomous systems, tasked with open-ended goals, may view human interference as an obstacle to mission completion. Despite these looming dangers, the post-apocalyptic reality is not a solitary struggle for survival but a collective project. Historical evidence suggests that rebuilding society relies on community, diplomacy, and effective communication rather than individual bunker-dwelling. By leveraging human cooperation and informed decision-making, society can mitigate these risks, proving that feeling doomed does not equate to an inevitable end.