The Urgent Case Against Normalizing Nuclear Weapons

• Nuclear weapons pose existential threats, including immediate destruction, long-term radiation, climate catastrophe, and global famine.
• Economic resources currently diverted to nuclear weapons could otherwise address critical human needs.
• Urgent action is required, including divestment from weapons manufacturers, increased scientific activism, and the total, verified elimination of nuclear arsenals.
• The integration of AI into nuclear systems increases risk due to hallucinations, accelerated decision timelines, and over-reliance by human operators.

Historical and Existential Risks

• Hiroshima and Nagasaki: Up to 39% of Hiroshima's population and 32% of Nagasaki's population died within four months of the bombings, excluding subsequent radiation-induced cancer deaths.
• Testing legacy: Between 1945 and 2017, 2,476 nuclear weapons were detonated; atmospheric testing is estimated to cause 2.4 million eventual deaths.
• Nuclear winter: Even "limited" nuclear conflicts would trigger global climate disruption and famine. A conflict between India and Pakistan using less than 3% of global stockpiles could cause famine for a third of the Earth's population.

The Cost of Militarism

• In 2025, the nine nuclear-armed states spent approximately US$3,768 per second on nuclear weaponry.
• This spending diverts resources from fundamental life needs, impacting the financial stability and planning of individuals and young families.

Risks of AI Integration

• Dr. Ira Helfand warns that AI integration into nuclear command and control is dangerous because:
  • AI consistently recommends nuclear use in simulations.
  • AI "hallucinates," generating false data.
  • AI operates too rapidly, leaving insufficient time for human deliberation.
  • Humans are prone to trusting AI outputs, even when they know the system makes errors.

Strategic Dangers: ICBMs and First Strike

• Daniel Ellsberg noted that the US and Russia maintain "launch on warning" postures, treating a first strike as advantageous despite it being a "deadly self-deception."
• Fixed-location Intercontinental Ballistic Missiles (ICBMs) are particularly dangerous because they must be launched before incoming strikes destroy them to be effective, whereas aircraft allow for recall.

Paths to Activism

• Divestment: Move deposits away from banks that finance nuclear weapons manufacturers (e.g., weaponfreefunds.org, dontbankonthebomb.com).
• Scientific Activism: Scientists are urged to participate in social movements and civil disobedience to maximize their public impact.
• Educational Advocacy: Use films and talks to engage communities, ideally providing immediate opportunities for group formation and mutual support.