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The rise of PoS (Proof of Stake) and DPoS (Delegated Proof of Stake) introduces competitive pressure on Bitcoin's PoW (Proof of Work) model. PoS-based networks like Ethereum 2.0 offer lower energy consumption and faster transactions, attracting ESG-conscious investors and diverting speculative capital from Bitcoin . However, Bitcoin's scarcity (21 million cap) and decentralization remain unchallenged, with its post-2024 halving inflation rate dropping to 0.78%—below gold's 1.5–2% . This scarcity, combined with institutional adoption (e.g., BlackRock's ETF), strengthens Bitcoin's "digital gold" narrative, offsetting PoS-driven competition. Thus, while new mechanisms supplement blockchain innovation, Bitcoin's foundational value persists, creating a coexisting ecosystem rather than a direct 冲击.