When I first entered the field, I thought blockchain was just about buying coins to get rich,
Later, I realized that buying coins is just a sculpture outside the door. How many of the seven major sectors do you know?
1️⃣ Infrastructure
The foundational architecture of blockchain
Public Chains: Ethereum, Solana
Scaling Chains: Arbitrum, Optimism
Cross-Chain Bridges: Oracles, Chainlink
2️⃣ Finance (DeFi)
On-chain banks and casinos
DEX: Decentralized Exchanges
Lending Protocols: Stablecoins, Derivative Contracts
3️⃣ NFT and Content
Verification and trading of digital assets
NFT Platforms: Blockchain Games, GameFi, Metaverse
4️⃣ Tools and Middleware
Services for developers and projects
Wallets: Data Analysis, Contract Development, Block Explorers
5️⃣ Privacy and Security
Protecting on-chain privacy and fund security
Zero-Knowledge Proofs: ZK
Privacy Coins: Monero, Security Audits
6️⃣ Social and Identity
On-chain social and identity systems
Decentralized Identity: DID
Social Graphs, Creator Incentives
7️⃣ Applications and Platforms
The real-world application of blockchain
DAOs: Data Storage, Filecoin
On-chain Applications: Healthcare, Government, Supply Chain
