Sunk Cost Fallacy
The sunk cost fallacy is the psychological tendency to continue investing in a failing course of action because of resources already spent, unable to accept that prior investment is lost regardless of future choices. In geopolitics, it explains why nations stay in unwinnable wars: the more they've spent in lives and money, the less politically tolerable it becomes to admit the war was a mistake.
The economic concept is straightforward: past spending is irretrievable and therefore irrelevant to future decision-making. Whether to continue a failing military campaign should depend entirely on future prospects, can we win from here?, not on what was already spent. The rational decision-maker evaluates only forward-looking costs and benefits. But humans are not rational calculators: they are deeply invested in justifying past choices, and the greater the investment, the more psychologically necessary it becomes to believe it was justified.
In military history, the sunk cost fallacy is ubiquitous. The Pentagon Papers revealed that by the mid-1960s, American leadership privately knew Vietnam was unwinnable. They continued fighting until 1973, eight more years, primarily because they couldn't face the political and psychological cost of admitting that 58,000 Americans had died for nothing. The longer the war went, the more necessary it became to believe that future victory was possible, because the alternative was to acknowledge that all previous deaths were meaningless.
Predictive History applies this directly to the anticipated Iran scenario. Once 100,000 US troops are trapped in Iranian mountain terrain, unable to advance or be resupplied, the sunk cost fallacy kicks in automatically. The military cannot retreat, that is political catastrophe. The nuclear option is blocked by Putin's umbrella. The only option is to send more troops, spend more money, and insist that victory is around the corner, exactly as America did in Vietnam for a decade. Iran understands this mechanism and has designed its strategy to exploit it.
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Frequently asked questions
What is the sunk cost fallacy in geopolitics? ＋
The sunk cost fallacy in geopolitics is when nations continue unwinnable wars because they can't politically or psychologically accept that past sacrifices were wasted. The Pentagon Papers showed US leadership knew Vietnam was unwinnable by the mid-1960s, but continued fighting until 1973. Sunk costs compel escalation even when retreat is strategically correct.
How does the sunk cost fallacy apply to a potential Iran war? ＋
Predictive History argues that Iran's strategy is to lure US troops into Iranian mountain terrain where they become trapped, unable to advance or be supplied. Once there, the US faces the sunk cost trap: retreating admits the investment was wasted, triggering domestic political collapse. So America must keep pouring in troops and money, making the black hole deeper with each escalation.