Conversing with Sam Seo of Klaytn Foundation: Understanding the Preferences of Korea’s 6 Million Crypto Users

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The global crypto spotlight has once again turned to Asia following major events like Token2049. While there's a common perception that Asian markets lag behind Western counterparts in blockchain infrastructure innovation, this view overlooks Asia’s strengths in application engineering, regulatory openness, and tightly-knit digital communities—areas where countries like South Korea not only compete but often lead.

South Korea, once at the center of industry turbulence due to the Luna crash, has emerged more resilient than ever. With strong government support for investor protection, tech giants driving user-friendly public blockchain development, and strategic international expansion through hubs like Singapore, the country is carving out a unique path in Web3 adoption.

At the heart of this movement stands Klaytn, a public blockchain backed by Kakao—the South Korean internet giant behind KakaoTalk, a messaging app used by over 95% of the population. Much like WeChat in China, KakaoTalk integrates financial services seamlessly, including a built-in crypto wallet where gas fees are abstracted away from users entirely. This focus on user experience (UX) is central to Klaytn’s philosophy and sets it apart in a crowded Layer 1 landscape.

In this exclusive conversation with Sam Seo, Representative Director of the Klaytn Foundation, we explore how Klaytn is leveraging deep insights into Korean user behavior to drive mass adoption—and how those lessons can be applied across Asia and beyond.

The Web3 Vision: From High-Performance Computing to Decentralized Systems

Q: Can you tell us about your background and how you first got involved with Klaytn?

Sam Seo: I hold a PhD in computer science, specializing in high-performance computing and software optimization. Before entering Web3, I worked at a research institute focused on improving developer tools. In 2017, while working as a research engineer at Samsung, a friend introduced me to Bitcoin. After reading the whitepaper and diving into its underlying technology, I became fascinated by the idea of decentralized, transparent systems that could transform finance and governance.

While Bitcoin sparked my interest, it was Ethereum’s vision of programmable blockchains that truly inspired me. I believed this technology could redefine the future of the internet. That conviction led me to join Ground X, Kakao’s blockchain subsidiary, as a software and protocol engineer. There, I played a key role in designing and building Klaytn from the ground up.

👉 Discover how leading developers are shaping the future of Web3 with seamless UX.

Beyond Finance: Blockchain as the Foundation of Next-Gen Internet

Q: You have deep expertise in traditional software systems. Where do you see the intersection between conventional web technologies and blockchain? And beyond financial use cases, how can blockchain empower the next generation of the internet?

Sam Seo: It's true that blockchain's most visible applications today are in finance—DeFi, stablecoins, tokenization. Even figures like Elon Musk acknowledge blockchain’s potential primarily in solving financial inefficiencies. But I believe its impact goes much further.

The original design of the internet was decentralized. Web1 was open and permissionless. However, due to scalability and operational challenges, Web2 evolved into a centralized ecosystem dominated by companies like Google and Meta, which now control vast amounts of user data.

Web3 changes that paradigm. With blockchain and smart contracts, data becomes transparent, secure, and user-owned. Cryptographic security ensures integrity, while decentralization returns ownership to individuals. Users can monetize their data or interact directly without intermediaries.

Of course, large companies may still play a role in delivering superior UX—but with Web3, they no longer need to own or control the data. This shift—from centralized custody to user sovereignty—is what makes Web3 fundamentally different.

Prioritizing User Experience: Klaytn’s Core Mission

Q: Klaytn aims to build the trust layer for Web3 and the metaverse. With so many Layer 1 blockchains competing globally, what sets Klaytn apart—especially in a mature market like Korea?

Sam Seo: Our guiding principle is exceptional user experience. We’ve engineered Klaytn for low latency and high throughput—critical for mainstream adoption. While most blockchains prioritize security (rightly so), many fall short in speed and responsiveness compared to Web2 standards.

Users expect instant interactions—like sending a message or loading an app in milliseconds. Traditional blockchain experiences often feel slow and cumbersome, requiring users to manage private keys and pay gas fees manually.

Klaytn solves this with sub-second block finality and native fee delegation, allowing services to sponsor transaction costs on behalf of users. This means people can use DeFi apps or NFT platforms without ever touching a wallet interface. To them, it feels just like any other mobile app—no learning curve, no friction.

This isn’t theoretical. Over 6 million Koreans already use crypto services—mostly through centralized exchanges—because they value trust and ease of use over full decentralization. Our job is to bring that same simplicity to decentralized applications.

Balancing the Blockchain Trilemma: Speed vs. Decentralization

Q: The blockchain trilemma suggests trade-offs between scalability, security, and decentralization. If Klaytn achieves Web2-like speed, what compromises are made?

Sam Seo: You're right—achieving high performance often requires reducing decentralization initially. Security remains non-negotiable. But we’re actively researching ways to enhance decentralization without sacrificing speed.

For example, our consensus mechanism balances efficiency with distributed node participation. As adoption grows, we continue refining protocols to increase validator diversity and resilience. The goal is continuous improvement—delivering performance today while evolving toward greater decentralization tomorrow.

Tapping Into Korea’s 6 Million Crypto Users

Q: What defines the Korean Web3 market today? How does it differ from Western ecosystems?

Sam Seo: Korea’s crypto landscape is unique. There are over 6 million active crypto users, most of whom engage via centralized exchanges like Upbit or Bithumb. Why? Because they offer fast, intuitive interfaces with customer support—something many DeFi platforms lack.

This preference shapes our strategy: bridge CeFi users to Web3 seamlessly. By integrating Klaytn wallets into KakaoTalk—used by nearly every Korean adult—we remove onboarding barriers entirely.

Users don’t need to understand blockchain; they just tap a button to send tokens or stake assets. Behind the scenes, complex operations like key management and gas payments are abstracted away.

👉 See how seamless onboarding can unlock mass adoption in emerging markets.

Real-World Adoption: Gaming and Tokenized Assets

One area where Klaytn shines is gaming. Take SuperWalk, a popular step-tracking game on Klaytn. It offers two modes: free and pro.

In free mode, users play without owning NFTs or holding tokens—the team covers gas fees via fee delegation. As players engage, they’re gradually introduced to premium features requiring token ownership.

This progressive onboarding model mirrors how traditional apps work: start simple, unlock complexity over time. It’s been hugely successful in attracting non-crypto natives.

Beyond gaming, we’re pioneering real-world asset (RWA) tokenization. In collaboration with the Korea Gold Exchange, we’re launching tokenized gold products soon—allowing users to invest in physical gold without storage concerns. The asset is securely held off-chain while ownership is managed on-chain via Klaytn.

This fusion of tangible value with digital accessibility could redefine investment in Asia.

Asia-First Global Expansion Strategy

Q: How does Klaytn approach international growth? Is expansion limited to Asia?

Sam Seo: We tried entering North America and Europe last year but faced cultural and resource challenges. This year, we’re focusing on Asia-first growth, starting with Vietnam.

We’ve hired local teams who understand regional nuances—from language to payment preferences. Instead of pushing our Korean success story, we position ourselves as enablers of local Web3 ecosystems.

In Vietnam, for instance, developers prioritize practicality over polish—they want fast deployment and minimal friction. So we provide tools that reduce trial-and-error cycles, helping builders launch quickly.

Compare that to Korea, where UX refinement is paramount. Both approaches have merit; our job is to adapt our platform accordingly.

While our primary audience remains Asian users for now, our long-term vision is global—built on localized execution.

A Collaborative Relationship with Ethereum

Q: As an EVM-compatible chain, how does Klaytn relate to Ethereum? Is it competitive or complementary?

Sam Seo: We see ourselves as collaborators, not competitors. Ethereum is evolving into a settlement and data availability layer—especially with rollups gaining traction.

Klaytn complements this by offering an EVM-compatible environment optimized for end-user experience. Developers can deploy Solidity-based dApps with minimal changes while benefiting from faster finality and lower costs.

We also contribute back: occasionally submitting EIPs when innovations on Klaytn have broader relevance. In fact, feedback from Ethereum Foundation members suggests Klaytn has helped grow South Korea’s Solidity developer community significantly through education initiatives.

Our compatibility strengthens the wider ecosystem—it’s not zero-sum.

Post-Luna Crash: Shifting Focus from Growth to Trust

Q: How did the Terra/Luna collapse affect Korea’s crypto industry—and Klaytn’s strategy?

Sam Seo: The crash had profound effects. Many Korean investors lost savings; development teams shut down or migrated chains. Most importantly, it shifted regulatory focus from market expansion to investor protection.

Today’s regulations aim to balance innovation with safeguards against fraud—a necessary evolution.

In response, Klaytn doubled down on transparency and decentralized governance. We launched Klaytn Square, a public portal where anyone can view treasury activities, governance proposals, funding allocations, and decision-making processes.

This openness builds trust—not just with users but with regulators too.

We’re also integrating more stablecoins developed by trusted third parties—but have no plans to issue one ourselves.

Building Community Through Engagement

Q: How can builders get involved during bear markets? Are there events or programs available?

Sam Seo: Absolutely. Our annual hackathon, KlayMakers23, just launched and runs through November. It’s open globally to all developers building on Klaytn.

We also host monthly all-hands meetings on Discord in both English and Korean—covering updates on tech, grants, and ecosystem growth.

Additionally, we participate in major conferences like Korea Blockchain Week and Token2049—hosting side events, panels, and networking sessions.

These efforts ensure continuous engagement across developers, investors, and users.


Frequently Asked Questions (FAQ)

Q: What makes Klaytn different from other EVM chains?
A: Klaytn prioritizes user experience above all—offering sub-second finality, fee delegation for gasless transactions, and deep integration with mainstream apps like KakaoTalk to lower entry barriers for non-crypto users.

Q: Is Klaytn fully decentralized?
A: While initially more centralized for performance reasons, Klaytn is actively enhancing decentralization through governance improvements and validator diversification—all while maintaining high-speed performance.

Q: How does Klaytn handle regulation in Korea?
A: Following the Luna crash, South Korea emphasized investor protection. Klaytn responds with full transparency via Klaytn Square and collaborates with regulated entities like the Korea Gold Exchange for compliant RWA projects.

Q: Can developers easily migrate dApps from Ethereum to Klaytn?
A: Yes—Klaytn is fully EVM-compatible. Most Solidity-based smart contracts can be deployed with minimal changes, benefiting from faster speeds and lower costs.

Q: What role does Kakao play in Klaytn’s development?
A: Kakao originally backed Klaytn through its subsidiary Ground X. While Klaytn now operates globally with its own foundation, Kakao’s ecosystem—especially KakaoTalk—remains vital for user acquisition and UX innovation.

Q: Are there plans to expand beyond Asia?
A: Yes—but strategically. After strengthening presence in Asia (e.g., Vietnam), Klaytn plans gradual global expansion based on proven local adoption models rather than aggressive marketing.

👉 Join a growing ecosystem where innovation meets real-world usability.