Long-term holding of $BTC requires a comprehensive approach across four dimensions: technology, team, economic model, and market, while continuously tracking project dynamics. For example, Bitcoin has become "digital gold" due to its scarcity and consensus, while Ethereum occupies a high ground of long-term value thanks to its smart contract ecosystem. Investors should avoid emotional trading, utilize tools (such as CoinMarketCap, TokenUnlocks) to assist in decision-making, and always maintain sensitivity to policy changes.