이더리움 머지, 블록체인 역사를 바꾼 대전환의 순간들

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2022년 9월 15일, 이더리움 머지(Ethereum Merge)는 탈중앙화 시스템 역사상 가장 야심 차고 복잡한 소프트웨어 업그레이드 중 하나로 기록됐다. 이는 단순한 기술적 업데이트를 넘어, 세계에서 두 번째로 큰 암호화폐 네트워크가 스스로를 보호하고 운영하는 방식에 근본적인 패러다임 전환을 가져왔다. 수년간 이더리움을 작업증명(PoW) 합의 메커니즘에서 지분증명(PoS) 시스템으로 전환하려는 비전은 종종 "Eth2"라고 불리며 먼 목표로 여겨졌다. 하지만 머지는 기존 이더리움 메인넷(실행 레이어)과 비콘 체인(PoS 합의 레이어)을 완벽하게 통합하며 마침내 이 비전을 현실로 만들었다. 이 글에서는 머지가 불러온 다면적인 변화들을 깊이 파고들어, 기술적, 경제적, 환경적으로 미친 심오한 영향들을 분석하고, 동시에 그 한계점을 면밀히 검토하며 이더리움의 미래 진화를 위한 발판을 마련한다.

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