Blockchain Evolution: From Bitcoin Limitations to Ethereum

While Bitcoin introduced the world to decentralized digital currency, its intentional design constraints paved the way for a more programmable blockchain. To understand the modern Web3 ecosystem, you must first comprehend why these limitations exist and how they inspired the birth of Ethereum. Through this text-only course, you will transition from a basic understanding of cryptocurrency to a clear comprehension of smart contracts and decentralized applications. You will explore the foundational differences between peer-to-peer payment networks and global, programmable state machines, preparing you to navigate the broader blockchain landscape with confidence. What you'll learn: Understand the core architecture of Bitcoin, including its scripting language and data storage constraints; Analyze why Bitcoin was designed with limited programmability to prioritize security and decentralization; Explore the foundational concepts of the Ethereum Virtual Machine (EVM) and how it solves Bitcoin's limitations; Compare proof-of-work and proof-of-stake consensus mechanisms and their operational impacts; Examine how programmable smart contracts enable decentralized finance (DeFi) and modern Web3 applications; Learn the basics of gas fees, execution costs, and modern scaling solutions like Layer 2 protocols. The course begins with essential blockchain terminology and foundational definitions before diving deep into the structural differences between Bitcoin and Ethereum. You will read through clear, conceptual breakdowns and analyze theoretical scenarios to build a solid mental model of decentralized technology. This course is designed for beginners, technology enthusiasts, and aspiring Web3 developers who want to understand blockchain history and architecture. No prior programming or cryptographic background is required. Start reading today to master the architectural shift that defined the modern decentralized web.