This summary covers all essential cryptocurrency concepts from the entire crypto section. Use it as a comprehensive reference guide.
Crypto Basics (221-235)
Fundamentals
Cryptocurrency:
- Digital currency using cryptography
- Decentralized networks
- Blockchain technology
- Peer-to-peer transactions
Blockchain:
- Distributed ledger
- Immutable records
- Consensus validation
- Foundation of crypto
Key Components
| Component | Purpose |
|---|---|
| Wallets | Store keys, sign transactions |
| Exchanges | Buy, sell, trade |
| Mining | Validate, secure network |
| Staking | Secure PoS networks |
Token Types
- Payment tokens (BTC, LTC)
- Utility tokens (LINK, FIL)
- Governance tokens (UNI, AAVE)
- Stablecoins (USDT, USDC)
- NFTs (unique digital items)
Bitcoin (236-245)
Core Concepts
Bitcoin:
- First cryptocurrency (2009)
- Limited supply: 21 million
- Proof of Work consensus
- "Digital gold" thesis
Key Features
| Feature | Description |
|---|---|
| Halving | Every ~4 years, reward halves |
| Mining | Secures network, creates BTC |
| Lightning | Layer 2 scaling solution |
| Wallets | Hot, cold, custodial options |
Investment Approaches
- HODL (long-term hold)
- Dollar-cost averaging
- Cycle trading
- Position sizing by risk
Altcoins (246-255)
Major Altcoins
| Altcoin | Focus |
|---|---|
| Ethereum | Smart contracts, dApps |
| Solana | High-speed transactions |
| Cardano | Research-based development |
| Chainlink | Oracle infrastructure |
Layer 1 vs Layer 2
Layer 1: Base blockchain (BTC, ETH, SOL) Layer 2: Built on L1, inherits security (Arbitrum, Optimism)
Stablecoins
| Type | Examples | Backing |
|---|---|---|
| Fiat-backed | USDT, USDC | USD reserves |
| Crypto-backed | DAI | Over-collateralized |
| Algorithmic | (Risky) | Algorithm |
Altcoin Risks
- Extreme volatility (90%+ drops)
- Project failure
- Rug pulls and scams
- Regulatory uncertainty
- Lower liquidity
DeFi (256-261)
Core Concepts
DeFi:
- Financial services on blockchain
- No intermediaries
- Smart contract powered
- 24/7 availability
DeFi Categories
| Category | Examples | Function |
|---|---|---|
| Lending | Aave, Compound | Earn interest, borrow |
| DEXs | Uniswap, Curve | Swap tokens |
| Yield | Yearn | Optimize returns |
| Derivatives | dYdX, GMX | Leverage trading |
Key Concepts
Liquidity Providing:
- Deposit token pairs
- Earn trading fees
- Impermanent loss risk
Yield Farming:
- Earn rewards for participation
- Often high APYs (with high risk)
- Protocol token incentives
DeFi Risks
- Smart contract vulnerabilities
- Economic exploits
- Impermanent loss
- Rug pulls
- Oracle manipulation
Crypto Trading (262-270)
Trading Basics
Order Types:
- Market orders (immediate execution)
- Limit orders (specific price)
- Stop orders (risk management)
Strategies:
- Scalping (minutes)
- Day trading (hours)
- Swing trading (days-weeks)
- Position trading (weeks-months)
Technical Analysis
Key Tools:
- Support and resistance
- Trend lines
- Moving averages
- RSI, MACD
- Volume analysis
Risk Management
Essential Rules:
- Risk 1% per trade
- Use stop losses
- Proper position sizing
- 2:1+ risk/reward ratio
Psychology
Manage:
- FOMO and FUD
- Revenge trading
- Greed and fear
- Cognitive biases
Derivatives
Types:
- Perpetual swaps
- Futures
- Options
Warnings:
- Leverage amplifies losses
- Liquidation risk
- Not for beginners
Tax Obligations
Taxable Events:
- Selling for fiat
- Trading crypto-to-crypto
- Spending crypto
- Receiving as income
Best Practices:
- Keep detailed records
- Use tax software
- Consult professionals
Security Checklist
Essential Practices
- [ ] Hardware wallet for large amounts
- [ ] Seed phrase secured offline
- [ ] 2FA on all accounts
- [ ] Unique, strong passwords
- [ ] Verify URLs before connecting
- [ ] Revoke unused token approvals
- [ ] Research before investing
Red Flags
- Guaranteed returns
- Anonymous teams
- Pressure to act fast
- No audit or documentation
- Too good to be true
Key Metrics Reference
| Metric | What It Measures |
|---|---|
| Market Cap | Total value |
| Volume | Trading activity |
| TVL | Value in DeFi protocols |
| Dominance | Market share (BTC) |
| Funding Rate | Derivative sentiment |
Investment Framework
Portfolio Structure
| Tier | Allocation | Examples |
|---|---|---|
| Core | 60-80% | BTC, ETH |
| Major | 15-30% | SOL, DOT |
| Speculative | 0-5% | New projects |
Entry Strategies
- Dollar-cost averaging
- Buy the dip
- Lump sum (strong conviction)
Exit Strategies
- Take profits at targets
- Rebalance periodically
- Stop losses for risk management
Final Key Takeaways
Fundamentals
- Only invest what you can completely lose
- Security is your responsibility
- Do your own research (DYOR)
- Start small, learn continuously
Trading
- Risk management determines survival
- Psychology often determines success
- Have a plan before trading
- Accept losses as part of the process
Long-Term
- Think in cycles, not days
- Education never stops
Section Complete
Crypto Section Progress:
- Crypto Basics: ✅ (15 articles)
- Bitcoin: ✅ (10 articles)
- Altcoins: ✅ (10 articles)
- DeFi & Trading: ✅ (15 articles)
Total Crypto Articles: 50
This article is for educational purposes only and does not constitute financial advice.
Risk warning. This is education only, not financial, investment, tax or legal advice, and not a recommendation to buy or sell anything. Trading forex, CFDs, stocks, commodities, futures, options and crypto is high-risk; with leverage you can lose more than you deposit, and most retail traders lose money. Before you trade or invest in any form, check the local laws where you are and the rules of your country of residence, and consider your own financial situation; if in doubt, ask a licensed adviser. Past and tested results, and all examples, are for illustration only and do not guarantee future results.