Bitcoin may be doing more for the US dollar than its critics expect. According to Coinbase CEO Brian Armstrong, the rise of Bitcoin has created a market-based counterweight that pressures policymakers to maintain fiscal discipline — indirectly reinforcing the dollar’s role as the world’s reserve currency.
Speaking in a recent interview on the Tetragrammaton podcast, Armstrong argued that Bitcoin offers an alternative store of value during periods of economic stress, particularly when inflation or government spending begins to erode confidence in traditional currencies. That competitive pressure, he said, can help keep the dollar credible rather than weaken it.
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“If deficit spending or inflation runs too hot, people will move into Bitcoin during times of uncertainty,” Armstrong said. “That dynamic acts as a check on policy decisions that might otherwise undermine confidence in the US economy.”
Armstrong framed Bitcoin not as a replacement for the dollar, but as a constraint on excess. In his view, modest inflation aligned with economic growth is manageable, but sustained imbalances between inflation and growth could threaten the dollar’s reserve status — a risk he described as economically destabilizing for the United States.
Bitcoin as a constraint on fiscal policy
Armstrong’s comments come as concerns over US fiscal sustainability continue to grow. Federal debt has climbed to roughly $37.6 trillion, according to data from the US Congress Joint Economic Committee, and is increasing at a pace of tens of billions of dollars per day.
That backdrop has revived interest in alternative assets viewed as protection against currency debasement. In recent months, major financial institutions have grouped Bitcoin alongside gold as part of what some analysts describe as a “debasement hedge,” reflecting growing unease over long-term monetary stability.
Armstrong suggested that Bitcoin’s mere existence encourages caution among policymakers. By offering a credible exit for capital, Bitcoin forces central banks and regulators to consider how inflationary policies might be perceived by global markets.
“In a strange way, Bitcoin may actually help extend the American experiment,” Armstrong said, adding that the threat of capital flight can reinforce responsible governance rather than weaken it.
Strategic Bitcoin reserve debate adds political dimension
The discussion around Bitcoin’s role in the US financial system has also taken on a political dimension. Earlier this year, the Trump administration signed an executive order establishing a Strategic Bitcoin Reserve, positioning Bitcoin as a potential long-term national asset.
At present, the reserve consists solely of Bitcoin seized through law enforcement actions, with no mandate to purchase additional assets. Legislative efforts such as the proposed Bitcoin Act of 2025, which would formalize and potentially expand the reserve, remain in early stages in Congress.
Supporters of the idea argue that Bitcoin could serve as a hedge against rising debt and monetary erosion, while critics warn that volatility and regulatory uncertainty make it unsuitable for such a role. Armstrong’s remarks stop short of endorsing Bitcoin as a sovereign reserve replacement, instead emphasizing its indirect influence on fiscal behavior.
Source: Antonio García Martínez
Stablecoins emerge as a parallel dollar strategy
Not everyone agrees that Bitcoin plays the most important role in sustaining dollar dominance. Some industry leaders point to stablecoins as a more direct mechanism for extending the dollar’s global reach.
Stablecoins denominated in US dollars have rapidly expanded in use, particularly in regions with limited access to traditional banking. By facilitating cross-border payments and digital commerce, they embed dollar liquidity
into everyday transactions worldwide.
Polygon Foundation CEO Sandeep Nailwal recently argued that stablecoins may do more to entrench the dollar than Bitcoin by driving demand for US Treasurys and increasing dollar usage outside the US financial system.
Regulatory clarity has accelerated that trend. The passage of the GENIUS Act in mid-July introduced one of the most comprehensive US frameworks for stablecoin issuance and oversight to date. The stablecoin market currently stands at over $300 billion, with US Treasury estimates projecting growth toward $2 trillion by the end of the decade.
Together, Bitcoin and stablecoins appear to represent two different paths toward the same outcome: preserving confidence in the dollar in a rapidly digitizing global economy.