According to Crypto Rover (@rovercrc), the fixed supply of 21 million Bitcoin compared to a global population of 8.2 billion people highlights a fundamental scarcity, which is a key bullish factor for traders. This unique supply-demand dynamic is often cited by analysts as a driver for long-term price appreciation in Bitcoin, making it a critical consideration for portfolio allocation and trading strategies (source: Crypto Rover, Twitter, April 27, 2025).