Bitcoin advocate Samson Mow has cautioned against a hasty implementation of quantum-resistant cryptography for the cryptocurrency. While acknowledging the eventual threat posed by quantum computers, Mow, founder of Jan3, expressed concerns that rushing the transition could introduce new vulnerabilities. He highlighted potential issues such as compatibility problems and reduced network efficiency due to significantly larger signature sizes.
Mow stated that a poorly executed upgrade could weaken Bitcoin against current threats before it even addresses future quantum computing risks. This debate is fueled by recent research from Google and Caltech, which has reignited concerns about advancements in quantum computing.
A primary concern for Mow is the potential impact on Bitcoin's performance, particularly block size and transaction throughput. He noted that post-quantum signatures could be substantially larger, potentially leading to a "Blocksize Wars 2.0" scenario, reminiscent of disputes over network scaling from years past.
Despite these concerns, Mow emphasized that work on potential quantum security solutions should continue. However, he maintains that given quantum computers are not yet a present reality and are likely a decade or more away, a rushed fix would be the worst possible course of action.