Introduction to Web3 & DeFi

📚 15 min readUpdated: October 2025

"Decentralized Finance (DeFi) represents the most significant transformation in financial services since the advent of the internet, enabling permissionless access to financial instruments for billions worldwide."

The Financial Revolution

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Topics to cover:
• Evolution from traditional finance to DeFi
• Key paradigm shifts in financial infrastructure
• Global accessibility and financial inclusion
• Elimination of intermediaries

Key Innovations

Smart Contracts

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Decentralized Applications (dApps)

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Tokenization

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Composability

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DeFi's Transformative Potential

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Impact Areas

  • Banking and Payments
  • Lending and Borrowing
  • Investment and Asset Management
  • Insurance and Risk Management

Understanding Decentralization

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Key Takeaways

  • DeFi removes intermediaries through blockchain technology and smart contracts
  • Web3 enables permissionless access to financial services globally
  • Composability allows protocols to build on each other, creating innovation
  • Decentralization distributes power and reduces single points of failure