@jack999
Proof-of-Work (PoW) and Proof-of-Stake (PoS) are blockchain consensus mechanisms. PoW, used by Bitcoin, relies on miners solving complex puzzles, ensuring high security but consuming significant energy and processing transactions slowly. PoS, adopted by Ethereum (post-2022), selects validators based on staked cryptocurrency, offering energy efficiency and faster transactions but risking wealth concentration. PoW is battle-tested for security, while PoS prioritizes scalability and sustainability. The choice depends on a blockchain’s goals—security for PoW or efficiency for PoS
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