Crypto’s Shift to Infrastructure & Privacy

Buenos Aires has a distinct frequency. It is a city where European grandeur collides with Latin American intensity, a place where economic theory is not an abstract concept discussed in ivory towers, but a visceral, daily struggle for preservation. It is, therefore, no accident that this metropolis was chosen to host Devconnect 2025. The backdrop of Argentina, a country synonymous with both monetary volatility and grassroots crypto adoption, provided the perfect stage for an industry that is finally growing up.

If previous years in the crypto cycle were defined by noise, spectacle, and the blinding lights of speculative mania, reminiscent of a Las Vegas casino floor, Buenos Aires offered a stark, sobering contrast. The air didn’t smell of “easy money” and vaporware; it smelled of strong coffee and serious engineering. Here, the narrative shifted. We are no longer building toys for the bored and wealthy; we are building infrastructure for a world that is cracking at the seams.

To navigate this profound shift, we enlisted the insights of key industry architects: Arthur Firstov (Mercuryo CBO), who focused on the privacy mandate; Vivien Lin (BingX CPO), who detailed the integration of AI into trading ecosystems; and Ivan Machena (8lends CCO), who provided a vital assessment of the layer-2 adoption landscape.

Through extensive back-channel conversations with these leaders, a clear picture emerges. We are entering a new epoch. This is the story of how privacy became a mandate, how Artificial Intelligence is demanding a seat at the financial table, and how global diversity finally shattered the myth of the “archetypal user.”

The Privacy Mandate, From Feature to Foundation

The most potent message from Buenos Aires was not broadcast via fireworks or celebrity endorsements. It was whispered in the dense fabric of technical workshops and crowded hacker houses. The message is simple: transparency is a feature, but total exposure is a flaw.

In Bangkok, at previous gatherings, privacy was merely a “track”, a side room visited by cypherpunks and idealists. In Buenos Aires, it was the main event. The industry has collectively realized that without privacy, there is no mass adoption, only mass surveillance.

Arthur Firstov, the Chief Business Officer of Mercuryo, captured this paradigm shift perfectly. Reflecting on the dominant research areas of the event, Firstov noted a distinct change in temperature.

“Privacy was the defining theme,” Firstov asserts, before continuing:

“Compared to Bangkok, where privacy was just one important track, Buenos Aires elevated it to the main stage.”

His observation aligns with a sentiment that permeated every venue of the conference. A phrase began circulating around the co-working spaces and lecture halls, becoming the unofficial motto of Devconnect 2025:

“If your wallet is not privacy-preserving by design, it is legacy.”

This is not a technological fad, it is a response to an increasingly transparent world where financial data is weaponized. Firstov highlights that the tone was set from the top, with Vitalik Buterin offering a “full walkthrough of his personal privacy stack, from OS and mobile devices to private RPC.”

But the crucial evolution lies in how this technology is now being packaged. It is no longer about command-line interfaces for the elite; it is about invisibility.

Firstov explains:

“Builders focused on stealth addresses, smart AA [Account Abstraction] patterns, selective disclosures, and ‘creating better defaults so users do not even notice how much complexity is being handled beneath the surface.”

This “invisibility” is the holy grail. The user does not want to understand zero-knowledge proofs; they simply want to know their bank balance isn’t public property.

Alongside this push for privacy, Firstov identified a pragmatic evolution in DeFi: the rise of “preconfirmations for instant-feeling stablecoin payments” and new yield surfaces that offer “simple, ‘money-market style’ experiences without going full degen.” The industry is moving away from 10,000% APY Ponzi schemes toward boring, reliable, private finance.

The “Black Box” Controversy, Who Do We Trust?

However, no revolution is without its internal schisms. While the consensus on the need for privacy was absolute, the method of achieving it sparked the most heated technical debates of the week. The eye of the storm was the reliance on Trusted Execution Environments (TEEs), hardware-based secure enclaves.

Is the future of privacy found in cryptographic math or in silicon manufacturing?

Firstov describes this division as the “most unexpected or controversial technical debate” of the event. On one side stood the pragmatists. He notes:

“One camp argued that TEEs are ‘practically necessary for high-throughput, low-latency, and private computation’, particularly for private settlement, derivatives strategies, and agent-based execution.”

The argument is compelling: if we want Wall Street speeds on the blockchain, math alone might be too slow. We need hardware acceleration.

But the opposition was loud, principled, and deeply skeptical. Firstov relays their warning: “If the trust model becomes ‘trust this black-box server in a data center,’ then crypto is not improving much over traditional finance.”

If we simply replace a bank’s server with Intel’s SGX enclave, have we actually decentralized anything?

This led to an unresolved meta-question that will likely define research priorities for the rest of the decade:

“How much of the world’s stablecoin and payment rails are we comfortable running on opaque hardware… and what does ‘trust-minimized enough’ actually mean in that context?”

The Rise of the Machines: AI as the New Financial Architect

While cryptographers sparred over hardware trust, another titan was quietly integrating itself into the crypto stack: Artificial Intelligence. Devconnect 2025 wasn’t just about the ledger; it was about the inevitable marriage of the decentralized database and the autonomous brain.

Vivien Lin, Chief Product Officer and Head of BingX Labs, brought a perspective from the front lines of centralized exchanges (CEXs), which are rapidly morphing into something far more complex. For her, the primary theme was undeniable.

Lin says:

“The primary theme for me was the integration of AI into exchange infrastructure and the realization that exchanges are evolving into full financial ecosystems, not just trading applications.”

She paints a picture of a future where AI acts as the connective tissue of finance.

“Builders were focused on how AI can unify trading, custody, payments, risk management, and user intelligence into a single ‘super app’ experience.”

However, much like the TEE debate in the privacy sector, the integration of AI brings its own security paradox. How do you trust an AI with your life savings? Lin notes a strong push toward “secure, verifiable systems, including privacy-preserving compute and on-chain proofs, that ensure AI-driven features don’t compromise user data or fund safety.”

The goal is to create ecosystems that are “both intelligent and deeply secure, giving users more automation and context without sacrificing trust.” But the most fascinating friction point, according to Lin, wasn’t about capability, it was about autonomy.

“The major friction point was how much autonomy AI agents should have in trading environments,” Lin explains. The debate split the room.

She adds:

“Some developers argued that agents should manage liquidity, rebalance portfolios, or place orders without human oversight. Others warned that giving AI unrestricted access to execution layers could create systemic risk.”

The core disagreement touches on the very nature of human agency in markets: “Should AI be a co-pilot for traders or a fully autonomous participant in market structure?” In Buenos Aires, the consensus seemed to be shifting toward autonomy, provided the guardrails of cryptography are strong enough to hold it.

Geography is Destiny, Lessons from the Global South

Perhaps the most transformative aspect of Devconnect 2025 was the location itself. Hosting this event in Argentina forced the global developer community to touch grass. While Silicon Valley developers obsess over optimizing code for milliseconds, the people of Buenos Aires obsess over preserving the value of their labor against inflation.

Arthur Firstov observed how this radical diversity shifted the conversation from theoretical scaling to survival tools. “Devconnect brought radically different user priorities into the same room,” he says.

“Latin American teams highlighted everyday use cases such as ‘wallets on low-cost smartphones’ and rent or payroll paid in stablecoins,” Firstov notes, further adding:

“Contrast this with the Asian and US infrastructure teams, who remained focused on “perpetual futures, routing, MEV, and latency.”

This collision of worlds forced a synthesis. The conversation moved away from simple “Transactions Per Second” (TPS) bragging rights toward UX and practical deployment. Firstov lists the questions that actually matter now:

“How can smart wallets hide complexity so users feel like they are using a normal fintech app? How do we support both ‘high-frequency trading flows and monthly salary payments’ without compromising trust or security?”

The biggest realization? “There is no single archetypal user in crypto.”

Vivien Lin echoes this sentiment, noting how the Argentine presence grounded the high-flying technical debates.

“The diversity of developers, especially strong representation from Argentina, shifted the discussion toward real adoption challenges on the ground, not just theoretical scaling.”

Argentine builders didn’t want to talk about the philosophy of money; they wanted to solve immediate problems.

Lin explains:

“Argentine builders raised issues around inflation, capital controls, and the need for fast settlement rails that work reliably in volatile economies.”

This expanded the scope of what an exchange should be, pushing for “AI-powered ecosystems that address both local constraints and broader challenges such as compliance fragmentation, cross-border liquidity, and mobile-first onboarding.”

What is Actually Being Built? Infrastructure Over Hype

Stepping away from the philosophical and geographical, we must ask: where are the builders actually deploying code?

Ivan Machena, Chief Communication Officer at 8lends, provides a sober look at the landscape. The era of “ghost chains”, blockchains with high valuations but no users, is ending. The focus is now on ecosystems that support real products.

“Looking at the broader industry conversations happening around Devconnect,” Machena observes, “several layer-2 and application-layer projects continue to attract strong builder interest.”

On the consumer front, Machena highlights Base. It is frequently cited for its “rapid growth and smooth onboarding infrastructure,” effectively becoming the gateway for the retail user. In the DeFi segment, Arbitrum retains its crown as the “preferred choice thanks to its mature ecosystem and composability,” while Polygon remains a staple for teams seeking balance.

However, Machena notes a migration toward the technically superior.

Arthur Firstov adds another layer to this adoption map, pointing toward the privacy and “agent-native” sectors. He identifies Aztec as drawing “serious attention as a privacy-first environment where products can be ‘private by default, selectively transparent where necessary’.”

Crucially, Firstov highlights Privacy Pools as the bridge between the cypherpunk ethos and institutional reality. It emerged as a “compliance-aware solution… a ‘practical answer to what privacy looks like when regulators and serious capital must be comfortable with it’.”

Furthermore, the physical world is coming on-chain. Firstov notes a trend of teams building DePIN (Decentralized Physical Infrastructure Networks) style storage and compute services, paid for in stablecoins, “aiming to make crypto feel like traditional cloud APIs.”

Outlook 2026: From Casino to Cathedral

As the attendees of Devconnect 2025 disperse from Buenos Aires, returning to their respective corners of the globe, the mood is undeniably different. The industry is maturing. The cultural ethos of the event, small, technical, community-led sessions rather than massive marketing spectacles is shaping the narrative for the coming year.

Arthur Firstov predicts a fundamental pivot in how we tell the story of crypto:

“Expect 2026 narratives to reflect that shift,  ‘infrastructure story instead of casino story,’ ‘stablecoins as the front end of crypto,’ and privacy as table stakes.”

This is a vision of a world where crypto ceases to be a synonym for gambling and becomes the invisible, robust plumbing of the global financial system. The questions are no longer about token prices. As Firstov puts it, the growing question is: “Which Web2–Web3 integrations will actually ship and move the needle on real users?”

Vivien Lin agrees, seeing the future in interconnected ecosystems rather than walled gardens.

“It reinforced the view that the future of crypto trading will be ecosystem-first. This ethos pushes the industry toward interoperable, AI-powered trading ecosystems where liquidity, identity, execution, and strategy automation become increasingly unified as we move into 2026.”

Buenos Aires was a stress test for the soul of crypto. The industry passed, not by offering easy answers, but by finally asking the right, difficult questions. We leave with fewer illusions, but with better tools. The “Casino Story” is dead; the “Infrastructure Story” has begun. And for the first time in a long time, it feels like we are building something that will last.