The realm of decentralized finance (DeFi) is both exciting and challenging. After holding investments for a period, many individuals ponder how to extract additional returns from their portfolios. However, the landscape of DeFi is rich and diverse, requiring careful study and exploration of its various components.

Since the advent of Bitcoin, its underlying technology—blockchain—has also encountered significant development opportunities. The potential of this technology has permeated various industries, inspiring numerous innovators to explore its diverse applications.

Blockchain technology offers a decentralized, transparent, and secure method for data and transaction management, profoundly impacting various industries, particularly finance. Originally the foundation for cryptocurrencies like Bitcoin, its applications now extend to supply chain management, healthcare, voting systems, and a variety of other scenarios.

Over the past two decades, the internet has undergone significant transformations. From the early days of Internet Relay Chat (IRC) to today's social media platforms, and from simple digital payments to complex online banking services, we have even witnessed the emergence of new internet-based technologies like cryptocurrencies and blockchain. The internet has become an essential part of human communication and connection, and it will continue to evolve. We have already experienced the rise of Web 1.0 and Web 2.0, but what changes will Web 3.0 bring? In the following sections, we will explore the various features of Web 3.0.

Eclipse Attack

A blockchain oracle is a third-party service that provides external information to smart contracts, acting as a bridge between the blockchain and the outside world.

Quantum computers possess immense computational power, capable of solving complex problems at speeds far surpassing those of conventional computers. Some experts estimate that quantum computers could potentially crack current encryption algorithms in just a few minutes, while the fastest classical computers would require thousands of years. As a result, many existing digital security infrastructures, including the cryptographic mechanisms relied upon by cryptocurrencies like Bitcoin, may be at risk.

What Is the Double-Spending Problem?

Broadly speaking, scalability refers to a system's ability to handle growing demands. In the computer field, you can enhance computational performance and speed up task processing through hardware upgrades. When discussing the scalability of blockchain, it typically means improving system performance to process more transactions.