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Nuclear-weapons stockpile increases: China arsenal grows from ~500 (2024) to ~1000+ warheads by 2030 per FAS/DoD estimates; global stockpile increases for first time since Cold War?

As of 6 Oct · 22:12 UTCResolves 31 Dec 20302 movers0 pressure moments
Timeline A · Escalating Conflict SpiralReality
80%
Crowd 85%Gap +5

China's nuclear arsenal reaches 1,000 warheads by end of 2030, according to estimates from the Federation of American Scientists and U.S. Department of Defense. This doubling of their stockpile from roughly 500 in 2024 marks the first sustained global increase in total nuclear weapons since the Cold War ended. Russia, the United States, and other nuclear powers also grow their counts during this period, driven by renewed great-power competition and modernization programs that prioritize quantity alongside capability upgrades.

Timeline B · Diplomatic ContainmentReality
20%
Crowd 15%Gap −5

China's stockpile remains below 700 warheads through 2030, and global totals actually shrink slightly as arms-control agreements and economic constraints slow production. The Federation of American Scientists and DoD estimates diverge from earlier warnings, showing that Chinese expansion plateaued after 2026 due to supply-chain friction and diplomatic pressure. Russia and the U.S. each retire more warheads than they build, keeping the world's total arsenal smaller than it was in 2024.

crowd 85
The quiet paththe one nobody’s watching

A catastrophic accident at a nuclear-weapons facility derails production timelines for all powers simultaneously.

6%
The read
Diplomatic Containment and Escalating Conflict Spiral are close to balanced.

Neither path has decisive pull. Which way this resolves depends on the levers below.

Where reality is heading

A, 80% bandCrowd today
Projected reality support to 31 Dec 2028A rises from 41% to about 52% with an 80% band of 33 to 71. B falls from 53% to about 44%. Quiet path near 4 to 6%. Crowd today: A 55%.100%7550250Crowd today · A 85%A ~52%B ~44%P ~4%NowJan 2027Jan 202831 Dec 2028
Reality crosses toward A in early 2028. Today’s crowd number sits at the top of A’s band, possible but optimistic. View as table

The movers, ranked by leverage

01
US commitment credibilityDetermines allied nuclear-proliferation-hedging pace
leverage 0
Conditional
02
China nuclear-modernization paceDetermines US-Russia-China three-way arms-race dynamics
leverage 0
Conditional

What would change our mind

Signals toward A
  • conflict-management via multilateral-diplomatic engagement
  • Global battle-deaths plateau then decline modestly
  • US commitment credibility: movement in the direction that supports Diplomatic Containment
Signals toward B
  • conflict trajectory accelerates
  • Ukraine settled via territorial-concession-based deal (Russia retains substantial territory, Ukraine partial reconstruction, weakened NATO commitment) or continues stalemate with reduced US support
  • Middle East escalates (Iran nuclear-breakout probability rises, Israel-Iran direct exchange, regional proxy war expansion)
  • Taiwan crisis brought forward as US commitment credibility tested
  • nuclear proliferation cascade begins (Iran, then Saudi Arabia, then potentially South Korea, Japan reconsidering)

Evidence