Quai's use of Proof-of-Entropy-Minima (PoEM) represents an innovative advancement in blockchain consensus mechanisms. It aims to address key limitations observed in both Proof-of-Work (PoW) and Proof-of-Stake (PoS).

While PoW is renowned for its security and decentralized nature, it suffers from high energy consumption and inefficiencies in fork resolution. PoS, developed to mitigate PoW's energy usage, introduces its own challenges such as the need for multiple data propagation rounds and a subjective consensus approach.

PoEM combines the strengths of PoW’s objective framework with improvements in efficiency and scalability. It ensures instantaneous fork resolution through the concept of intrinsic block weight. This allows nodes to deterministically select the next block, eliminating the prolonged uncertainty seen in PoW and the propagation delays in PoS.
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To go more in-depth on PoEM, please view the following page.