Last week, a letter from a small business owner in Kibera reached my desk. He had just processed his largest monthly sales volume on Visa — a record for him — yet his net profit had shrunk. The fees were eating him alive. Meanwhile, I was reading the headlines: Visa’s CFO declared the fastest US transaction growth since 2019, excluding pandemic recovery. Two stories, same transaction volume, opposite outcomes. The gap between them is where the story of blockchain begins.
Visa processed trillions of dollars last year. Its network effect is one of the strongest in the history of commerce: merchants accept it because consumers carry it; consumers carry it because merchants accept it. The model is elegant in its simplicity and ferocious in its profitability. The CFO’s statement — that US payment transaction volume is growing at the fastest pace in five years, adjusted for pandemic distortions — signals that the engine is running hot. But beneath that headline lies a complex narrative of nominal gains, macro dependencies, and structural vulnerabilities that blockchain technology is uniquely positioned to address.
My professional journey has been shaped by the tension between centralized financial infrastructure and the promise of decentralized alternatives. In 2017, I spent six months auditing ERC-20 token standards as part of the ZEIP-20 working group. I learned that every line of code encodes a choice: who gets priority, who pays, who trusts. The same mechanics govern payment networks like Visa. The difference is that Visa’s choices are made behind closed doors, governed by profit motives and regulator pressure. Blockchain’s choices are, at least in theory, transparent and community-driven. This is not just a technical distinction; it is a moral one. Tracing the moral code behind every token forces us to ask: who holds the power when we swipe a card?
The core of the CFO’s narrative reveals two hidden truths. First, the growth is partly fueled by higher fuel costs — a price effect rather than pure volume expansion. Second, the reliance on tax refunds and promotional spending indicates that consumer behavior is still dependent on external stimuli rather than organic economic health. Visa is a beneficiary of inflation and government cash flows, not a driver of sustainable prosperity. Its unit economics are outstanding — near-zero marginal cost per transaction — but its business model is inherently extractive. Every swipe generates a fee that flows to the network owner, not to the merchant or the creator. This is the gap that blockchain can close.
From my experience building the Open Ledger initiative in Kenya, I saw firsthand how high payment fees stifle small merchants. A local artisan selling beadwork to tourists would pay up to 3% in processing fees, plus settlement delays of two days. Meanwhile, when we piloted a blockchain-based payment system using a stablecoin and a mobile wallet, the fee dropped to 0.5% and settlement was instant. The technology existed; the barrier was adoption and trust. But the potential is immense. Building libraries where others build empires — that’s the philosophy that drives our educational work. We are not trying to overthrow Visa overnight; we are giving people the tools to understand what alternatives exist.
Let’s delve into the technical architecture that underpins both systems. VisaNet is a marvel of engineering: it handles over 1,700 transactions per second with 99.999% uptime, and its real-time fraud detection system, Visa Advanced Authorization (VAA), processes thousands of model updates per day. Yet for all its sophistication, VisaNet is a closed system. Its rules are written by Visa, its fees are set by Visa, its settlement schedule is determined by Visa. Merchants have no recourse but to accept the terms. In contrast, permissionless blockchains like Ethereum or Stellar allow anyone to issue tokens, set conditional payments, and settle peer-to-peer without a central gatekeeper. The trade-off is speed and finality — but innovations like Layer-2 networks and account abstraction are closing that gap. Smart contracts enable programmability that Visa cannot replicate without building a new system on top of its own — which it is trying to do with tokenization, but that approach still relies on the underlying centralized ledger.
When I facilitated the launch of the Savanna Voices NFT collection in 2021, we implemented a DAO-governed royalty system that automatically routed 70% of secondary sales back to the artists. That was not a feature Visa could offer without a multi-party contract; blockchain made it trivial. The creative economy needs platforms that embed revenue sharing at the protocol level, not as an optional addendum that can be switched off. That is why the OpenSea royalty surrender was such a betrayal — it showed that centralized platforms can change the rules arbitrarily. Blockchain gives creators a stake in the infrastructure itself.
Now, the contrarian angle: Visa’s growth is not a sign of invulnerability; it is a sign of peak extraction. The more transactions it processes, the more it highlights the inefficiencies that blockchain can solve. The company is well aware of this. Visa has invested in blockchain infrastructure, hired crypto talent, and filed patents for private blockchain networks. It is not ignoring the disruption. But the danger is that Visa will adopt the technology while maintaining central control — a “walled garden blockchain” that keeps the gatekeeper in place. This is the shadow of co-optation. As I argued in the African AI-Blockchain Ethics Charter, we must distinguish between technical tokenization and genuine decentralization. A blockchain without community governance is just a slower database. Preserving the human story in digital ledgers means ensuring that the power structures of the old world are not simply replicated with a new coat of cryptographic paint.
Let’s look at the numbers more carefully. The analysis of Visa’s financials shows that its operating leverage is strong, but its revenue is tied to macro conditions. If the U.S. enters a recession, transaction volume will decline sharply. If inflation falls, the nominal growth will evaporate. Visa is a luxury that works when the economy works. Blockchain-based stablecoins, on the other hand, are money that exists independently of a single economy. They are a hedge against local currency risk, especially in emerging markets. The DeFi library I helped build in Nairobi was not just an educational project — it was a survival kit. When the Kenyan shilling depreciated, our students learned how to preserve their savings in USDC. Visa cannot offer that.
The real battle is not between Visa and blockchain, but between centralized and decentralized governance of money. Real-time payment systems like FedNow try to keep the settlement on bank ledgers, but they still exclude the unbanked and the underbanked. Blockchain, with a mobile device, can include anyone. The technology is maturing: Ethereum’s transition to proof-of-stake reduced energy consumption by 99.9%, and Layer-2 solutions now offer sub-second finality with fees under a cent. The narrative that blockchain is too slow or too expensive is becoming a relic of the past. The question is whether we have the collective will to build parallel systems that prioritize inclusion over profit.
I have walked through the hype cycles and the winters. I have seen projects promise miracles and deliver vaporware. Yet I remain convinced that blockchain offers the only credible pathway to a financial system that is truly customer-owned. Visa will not disappear overnight, but its growth should be a call to action. Every new card transaction is a reminder of the fees we accept, the delays we tolerate, and the control we cede. Listening to the silence between the blocks means paying attention to the voices that are not heard in the quarterly earnings calls: the merchants who pay margins they cannot afford, the artists who lose royalties, the migrants who pay exorbitant fees to send money home. Blockchain gives those voices a channel to build their own infrastructure, one block at a time.
The future of payments is not about faster horses; it is about a new kind of mobility. We have the opportunity to build a financial systems that are programmable, transparent, and inclusive. But it requires vigilance and a willingness to reject the comfortable illusion that the biggest network is the best network. Community over capital, always. That is the ethos I carry into every audit, every curriculum, every conversation. Let us not be seduced by the record transaction volumes. Let us instead study the architecture of the machine and imagine what happens when the engine is owned by the people. The blocks are waiting.
