Vitalik Buterin Explained the Main Reasons for the Defeat of 'Big Blockchains' in the Bitcoin (BTC) Scaling War.

Vitalik Buterin, creator of #Ethereum addressed the controversial “Bitcoin block size war” of the late 2010s in a recent blog post. Buterin, who once backed “big bloc” supporters, now concedes that the “small bloc” camp’s approach is more sustainable. This discussion centered on how Bitcoin should be scaled, updated, and managed; Supporters of large blocks were advocating hard-fork updates that would increase transaction capacity. However, Buterin thinks that big block supporters do not have the technical competence to effectively realize their vision and therefore fail to replace #Bitcoin .

Buterin noted that the success of small-block promoters is partly due to their technical proficiency and fewer mistakes. He evaluated Jonathan Bier's book "The Blocksize War" from a small block perspective and Roger Ver's book "Hijacking Bitcoin" from a large block perspective. According to Buterin, various Bitcoin implementations proposed by big block supporters were flawed. For example, Bitcoin Classic was not well written and Bitcoin Unlimited was too complicated. Their reputations were also further damaged by the big bloc supporters' alliances with the now discredited Craig Wright.

Despite the victory of small-block supporters, Bitcoin still faces ongoing challenges. Bitcoin Core developer Matt Corralo recently expressed concerns about Bitcoin's future as a peer-to-peer currency, noting the lack of effective scaling solutions without intermediaries. This has reignited discussions about soft fork proposals and the ultimate goals for Bitcoin's development. Buterin argues that the solution to these problems is new technology, not compromise. He highlighted technologies such as ZK-SNARKs, which he sees as a promising solution for both privacy and scaling; this technology was absent from historical accounts of the block size war.
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