Alan Greenspan, the man whose monetary doctrine underpinned a generation of economic resilience and whose counsel fortified the Anglo-American financial axis, has died at 100. For those of us who parse threat vectors and strategic pivots, his passing is not merely a footnote in economic history; it is a structural vulnerability. The West has lost a key node in its defence-in-depth against systemic disruption.
Greenspan’s tenure at the Federal Reserve (1987–2006) was defined by a cold, data-driven pragmatism that treated inflation as an adversary to be neutralised with surgical rate adjustments. His philosophy, forged in the crucible of the 1987 Black Monday crash and the dot-com bubble, was a force multiplier for allied economies. Britain, in particular, benefited from his stabilising influence during the ERM crisis and the 2008 financial contagion. His intelligence sharing with the Bank of England and the Treasury, cultivated during the Thatcher–Reagan era, represented a backchannel that bolstered our collective financial defences.
The vulnerability now is threefold. First, the loss of his institutional memory: there is no equivalent figure with his combination of technical mastery and geopolitical instinct. Second, the current leadership in Washington and London lacks that shared historical lattice, which could prove critical during a coordinated financial cyberattack or a liquidity trap orchestrated by a hostile state. Third, his departure creates an information vacuum that adversaries will probe. Beijing and Moscow have long studied his playbook; they will now test our response mechanisms without his steadying hand.
We must consider this a ‘Black Swan’ in the strategic landscape. The financial architecture he helped build is now a static defence, vulnerable to adaptive threats. The Bank of England and the Fed must immediately review contingency protocols for cross-border communication in a crisis. The ‘Greenspan Standard’ of transparency and measured response was a deterrent in itself; its absence may embolden speculative raids on the pound or the dollar. We are entering a period of heightened monetary uncertainty, and without a trusted interlocutor at the nexus of Anglosphere finance, our reaction times could lag.
This is not a time for sentimental reflection. It is a time for wargaming the next disruption. The West has lost a major asset. The question is whether we can replicate his strategic foresight before a hostile actor exploits the gap.