Justin Sun: AI and Quantum Risks Make Me More Bearish on Bitcoin Than Before

On October 16, 2026, Justin Sun said in an interview with William Joy that advances in AI algorithms and quantum computing risks had made him more bearish on Bitcoin than before. He argued that the industry and investors holding Bitcoin through ETFs had not fully priced in these risks. He also suggested that AI progress in mathematics could potentially enable classical computing to break existing cryptography, even before a quantum computing breakthrough.