What exactly is Blockchain?

Blockchain Basics:
What are the core concepts of blockchain distributed ledger, decentralization, and immutability.
Consensus Mechanisms: The differences and significance of mainstream mechanisms such as PoW (Proof of Work), PoS (Proof of Stake), and DPoS (Delegated Proof of Stake).
Cryptocurrency vs Token: BTC and ETH are cryptocurrencies; assets issued on smart contract platforms (such as ETH, SOL, BSC) are typically tokens.
Wallet: The differences between hot wallets (exchange, app wallet) and cold wallets (hardware wallet, paper wallet), the absolute importance of private keys, public keys, and mnemonic phrases, and their secure storage.
Transaction: How transactions are broadcasted, confirmed, and recorded on the Blockchain (Gas fee concept).
2. Market Structure and Participants:
Centralized exchanges: Binance, Coinbase, Kraken, etc. Operating model, advantages and disadvantages (convenience vs custody risk).
Decentralized exchanges: Uniswap, PancakeSwap, Sushiswap, etc. AMM (Automated Market Maker) principle, liquidity pools, concept of impermanent loss, advantages and disadvantages (self-control of assets vs slippage, Gas fees).
Order Book vs AMM: Understanding the Differences Between Two Main Trading Models.
Other participants: miners/validators, market makers, institutional investors, whales, retail investors.

3. Core Terms:
Fiat vs Stablecoins: The roles and differences of USDT, USDC, DAI, etc. (Centralized vs Decentralized Stablecoins).
Trading pairs: the meaning of BTC/USDT, ETH/BTC (base currency vs quote currency).
Market capitalization, circulation, total supply: basic indicators for assessing project scale.
Order types: Market Order, Limit Order, Stop Loss Order, Take Profit Order, OCO Order (either one order).
KYC/AML: Understand the compliance requirements of the exchange.