a16z crypto is arguing that the word “stablecoin” has become too narrow for a market that now functions as core financial infrastructure. In analysis first published in January and reiterated in a May 1, 2026 piece by Robert Hackett, the firm said price stability is no longer the central innovation. It is merely the baseline for programmable, on-chain money.
The argument matters because language shapes how treasuries, exchanges, payment firms and tokenization projects design products. If these assets are viewed only as stable tokens, the focus stays on the peg. If they are understood as digital cash or programmable settlement instruments, the focus shifts to custody, composability, atomic settlement and integration with legacy financial rails.
In February 2026, stablecoins surpassed ACH in monthly volume for the first time.
Stablecoins – $7.2T
ACH – $6.8T
Visa – $1.2TStablecoins are quietly becoming the foundational infrastructure for global payments: no banks, no weekends, no borders.
Data used: @artemis pic.twitter.com/HmBqydqafM
— Alex (@obchakevich_) March 31, 2026
Stability Is Now the Starting Point
Robert Hackett, head of Special Projects at a16z crypto, wrote that “stablecoin” emerged as a defensive label during a period when crypto volatility made digital assets unsuitable for routine finance. In that context, stability was the selling point. Today, a16z argues, it is the minimum requirement.
John Palmer, president of CBOE Digital, described the term as “overly passive,” saying it understates what these instruments can do across markets and applications. a16z and its allies have floated alternatives such as “digital dollars,” “programmable cash” and “on-chain assets,” while acknowledging that none are as simple or entrenched as “stablecoin.”
The deeper point is architectural. Money is increasingly becoming software embedded inside application stacks, not just an asset that holds a fixed value against the dollar.
Programmable Cash Becomes Settlement Infrastructure
The adoption figures support that shift. Stablecoin supply was reported above $300 billion, with estimates around $321 billion. Global transaction volume reached as high as $33 trillion in 2025, while adjusted volume rose 91% to $10.9 trillion.
Those numbers suggest stablecoins are already serving as high-throughput payment and settlement rails. The cited use cases include instant cross-border payments, programmable smart-contract flows, tokenized-asset settlement and institutional clearing. Western Union’s testing of XRP and USDC in corridors such as Mexico and the Philippines was cited as an example of compressing T+3 settlement toward near real time. JPMorgan’s JPM Coin was also referenced as evidence of bank adoption.
Liquidity and reserve quality remain critical, but the operational questions now extend to API design, atomic swaps, custody interfaces, smart-contract integration and settlement finality.
The vocabulary may eventually follow the technology. As stability becomes assumed, institutions may focus less on the “coin” and more on the rails: programmable cash, digital dollars or simply money moving natively through on-chain systems.