The Bitcoin community is currently divided over the urgency of transitioning to post-quantum (PQ) cryptography by 2029. Samson Mow, founder of JAN3, has criticized Coinbase CEO Brian Armstrong's call for a rapid PQ upgrade, warning that untested solutions could expose Bitcoin to attacks from classical computers and reduce transaction throughput due to larger block sizes. Mow also raised concerns about potential backdoors in PQ standards pushed by the NSA. The debate intensified following a report by Google Quantum AI, which suggested that Bitcoin's encryption could be compromised sooner than expected, urging a PQ upgrade by 2029 to protect nearly 7 million BTC. Despite these warnings, some experts, including Grayscale's head of research Zach Pandl, believe that quantum computers do not currently pose a threat to blockchain security, though they advocate for accelerated preparations for a post-quantum future.