### **2. Trending Topics (2023–2024)**  
1. **ETF Approvals**:  
   - Dominant keywords: *BlackRock, SEC, spot ETF, institutional*.  
   - Sentiment: Mixed (optimism for adoption vs. fears of centralization).  

2. **Halving (April 2024)**:  
   - Focus: *supply shock, miner profitability, historical price patterns*.  
   - Example Post: *"Post-halving BTC will hit $100k. Scarcity drives value."*  

3. **Regulatory Crackdowns**:  
   - Examples: *Binance lawsuit, Tether scrutiny, China’s crypto bans*.  
   - Sentiment: Negative short-term, neutral long-term.  

4. **Technological Innovations**:  
   - Topics: *Ordinals (Bitcoin NFTs), Lightning Network, Taproot upgrades*.