The Internet Became Global by Connecting Regions, While Blockchain Is Global from the Start

3-Point Summary

• The Internet expands by connecting regional networks through BGP, while blockchain is global from the start.
• Blockchain scaling occurs by linking global L1 and global L2 through ZK proofs, not by connecting local regions.
• Web 3.0 requires a unified global L1–L2 architecture to mature into a global digital finance infrastructure.

The Internet became global by connecting regional networks through BGP, while blockchain is global from the start—expanding by cryptographically linking global L1 and global L2.

20-Second Shorts Video

The Expansion Structure of the Internet and the Expansion Structure of Blockchain

※ Before reading this article, you may find it helpful to review the previous post, which provides important context for the L1–L2 discussion.
👉 The Future of Digital Financial Infrastructure: Why L1 Fragmentation Fails and L2 Becomes the Best Business Model

― Why Web 2.0 Blossomed, and What Web 3.0 Needs to Mature

Introduction: The Internet Became Global Through BGP, While Blockchain Is Global from the Start

The reason the Internet was able to expand into a global network lies in the establishment of the IP protocol, especially BGP (Border Gateway Protocol). BGP connects regional networks (AS) around the world, creating a structure in which a collection of local networks naturally expands into a global network. On top of this global connectivity, Web 2.0 platforms flourished, ushering in the era of global media.

Blockchain, on the other hand, is an overlay network operating on top of the Internet. And every blockchain is, by design, a global network. This is why tens of thousands of blockchains exist today—anyone can create a global L1, and many have.

However, the blockchain ecosystem will inevitably converge toward an L1–L2 architecture. For Web 3.0 to operate globally, it requires a non-fragmented global blockchain infrastructure. A chaotic landscape of thousands of L1s cannot support a Web 3.0 ecosystem comparable to Web 2.0. A single global L1 and scalable L2 layers are essential to support global finance and global applications.

With this in mind, let’s compare how the Internet and blockchain expand.

1) The Internet’s Hierarchical Structure: Connecting Local Networks to Build a Global One

The Internet expanded through AS (Autonomous Systems), which represent local network domains, and BGP, the protocol that connects them.

• AS represents a local network domain — operated by countries, ISPs, enterprises, etc.
• BGP exchanges routing information between ASes — enabling local networks to interconnect and form a global Internet.

Thus, the Internet’s expansion follows a cumulative pattern: local → local → local → global. Global connectivity emerges as local networks interconnect.

2) Blockchain’s Expansion Structure: Connecting Global L1 and Global L2 with ZK

Unlike the Internet, blockchain is designed from the beginning as a global unified network. Both L1 and L2 are global layers with worldwide node participation, not region-based systems.

• L1 maintains a single global state — e.g., Ethereum, Bitcoin. All nodes share the same global ledger.
• L2 provides scalability on top of L1 — e.g., zkRollups, Optimistic Rollups. These are also global networks, not regional ones.

Here, a fundamental difference emerges:

• The Internet connects local networks via BGP to become global.
• Blockchain connects global L1 and global L2 via ZK proofs.

In other words, blockchain expansion is not about connecting regions but about connecting two inherently global layers through cryptographic proofs.

The Role of ZK Technology

ZK (Zero-Knowledge) technology allows L2 to submit proofs of state transitions to L1, and L1 verifies these proofs to trust L2’s state.

• BGP connects local networks by exchanging routing information.
• ZK connects global layers by exchanging cryptographic proofs.

Thus, the Internet is connection-centric, while blockchain is verification-centric.

3) Web 2.0 Took 30 Years to Mature into a Global Media Era

How Long Will It Take for Web 3.0 to Mature into a Global Digital Finance Era?

Since the Internet became mainstream in the 1990s, Web 2.0 platforms took about 30 years to build a global media ecosystem.

• 1990s: Early websites
• 2000s: Social networks
• 2010s: Mobile platforms
• 2020s: Fully global media infrastructure

The 30-year maturation of Web 2.0 was not just about technological progress.

• Rising global Internet penetration
• The smartphone and mobile revolution
• Accumulation of platform network effects
• Establishment of advertising, content, and creator economy models

In short, Web 2.0 matured through the combined evolution of technology, infrastructure, social adoption, and business models.

So How Long Will Web 3.0 Take?

Web 3.0 is ushering in the era of global digital finance through blockchain. But finance is far more complex and heavily regulated than media.

What Web 3.0 Needs to Mature

• Stability of L1, L2, and ZK technologies
• Regulatory alignment across countries
• Mass adoption of user-friendly wallets and key management
• Integration with the real economy (RWA, payments, financial rails)
• Accumulation of global trust

All of these must align for the global digital finance era to fully mature.

Will Web 3.0 Mature Faster or Slower Than Web 2.0?

Both possibilities exist.

Reasons It Could Be Faster

• Global Internet and mobile infrastructure already exist
• Technology adoption is much faster than in the 1990s
• Global capital enters early and aggressively
• Rapid advancement of ZK, L2, and modular architectures

Reasons It Could Be Slower

• Financial regulation is far more conservative
• Cross-border regulatory coordination is required
• Real-world integration cannot be solved by technology alone
• Finance requires deep, long-term trust

Conclusion: The Maturation of Web 3.0 Is “Technology Waiting for Society”

Web 2.0 was an era in which technology waited for society to catch up—and it took 30 years. Web 3.0 is an era in which society (regulation and finance) must catch up to technology.

Thus, the maturation of Web 3.0 is not simply a matter of years but depends on:

• the pace of technological maturity
• the pace of regulatory alignment
• the evolution of global financial infrastructure
• the mainstreaming of user experience

These four forces will determine the timeline.

If Web 2.0 took 30 years to complete the global media era, Web 3.0 may establish its technological foundation within 10 years and take another 20–30 years to become the backbone of global finance— a two-phase timeline.

Younchan Jung
Researcher exploring structural shifts in AI, blockchain, and the on‑chain economy.

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