How Web3 and Cryptocurrency Are Connected

The terms "Web3" and "cryptocurrency" often appear in discussions about the future of the internet. While they are distinct concepts, their interconnection is essential for understanding the decentralized internet's framework.

Web3 represents a vision for a decentralized internet built on [blockchain technology](/how-blockchain-technology-powers-web3). In this environment, users control their data and digital assets directly, building an ecosystem of ownership and autonomy.

Cryptocurrency serves as the economic layer that supports this new internet. It functions as the medium of exchange, enabling transactions and incentivizing behavior within the Web3 ecosystem.

Cryptocurrency fuels the Web3 infrastructure, enabling decentralization, user ownership, and new economic models. The following sections highlight the critical connections between these two concepts.

Cryptocurrency as an Incentive for Decentralization

A public blockchain operates without a central authority, relying instead on a distributed network of independent operators, often referred to as "miners" or "validators." This decentralized approach enhances security and resistance to censorship. Yet, a question arises: why would individuals worldwide invest in the electricity and hardware necessary to maintain this network?

• The Role of Crypto: Cryptocurrency provides the essential economic incentive for these operators.
• In a Proof-of-Work system, such as Bitcoin, miners receive rewards in the form of newly created cryptocurrency for validating transactions with their computational power.
• In a Proof-of-Stake system, like Ethereum, validators earn rewards for "staking" their capital to secure the network.

Without a native cryptocurrency to incentivize participation, the network would lack a viable economic model and risk collapse. Crypto serves as the payment system for decentralization.

Gas Fees for Smart Contracts

Every transaction on a smart contract platform such as Ethereum requires computational resources. To manage these resources efficiently and prevent abuse, each transaction incurs a fee known as "gas."

• The Role of Crypto: Users must pay this gas fee using the blockchain's native cryptocurrency.
• The Impact: This creates a market for computational resources. Increased demand can lead to higher gas prices, prompting users to wait or seek out more efficient applications. Cryptocurrency functions as the fuel for the "world computer," preventing resource waste. More information can be found in our guide to gas fees.

The Asset Layer for Digital Ownership

A fundamental promise of Web3 involves shifting from a "renter's internet" to an "owner's internet." Cryptocurrency establishes the native asset class for this new economy.

• Fungible Tokens: These tokens represent currencies and governance within the Web3 ecosystem. They allow users to not only use a protocol but also own a stake in its future, akin to shares in a company.
• Non-Fungible Tokens (NFTs): NFTs use blockchain technology to create unique, verifiable digital assets. This innovation allows for authentic ownership of digital items, art, music, and in-game items in ways previously unattainable.

Without cryptocurrency tokens, the concept of a user-owned internet would lack substance. Crypto provides the tangible representation of digital ownership.

A Global, Permissionless Payment System

Web3 applications are inherently global, accessible to anyone with an internet connection. They require a monetary system that is both global and permissionless.

• The Role of Crypto: Cryptocurrencies, including stablecoins, can transfer value from a user in Brazil to a dApp in Germany within seconds and for minimal fees, without relying on banks or intermediaries.
• The Impact: This structure creates a simple, internet-native economic layer that bypasses the slow and costly traditional financial system, laying the groundwork for global peer-to-peer commerce.

The Interconnection of Web3 and Cryptocurrency

Web3 provides the framework for a decentralized internet, while cryptocurrency delivers the economic mechanisms that sustain it.

Aspect	Web3	Cryptocurrency
Infrastructure	Decentralized networks (blockchain)	Native currency
Security	Distributed consensus among validators	Incentives for participation
Programmable Logic	Smart contracts	Value representation
Ownership Vision	User control over assets	Tokens as proof of ownership

You cannot achieve a truly decentralized, secure, and user-centric internet without a decentralized form of currency to support it. These two elements are intrinsically linked, representing different facets of a unified vision.