@bl4ze23
Powering blockchains with consensus is simpler than it seems. Proof‑of‑Work powers Bitcoin, demanding raw compute and energy, while Proof‑of‑Stake lets validators lock coins to propose blocks, slashing for misbehavior. New hybrids—DPoS, PoS‑with‑sharding, and even proof‑of‑history—blend speed, security and decentralization. As chains evolve, the best mechanism will balance energy, speed, and fairness.