Blockchain and cryptocurrency experts have long been aware of the potential risks posed by quantum computing, which could potentially break blockchain cryptography and compromise user assets.
However, despite these concerns, many argue that the threat is still distant, with some estimates suggesting it may be 20-40 years before quantum computers become powerful enough to pose a significant risk.
Blockstream CEO Adam Back has emphasized the need for Bitcoin to prepare for potential quantum threats. According to Back, current systems are essentially lab experiments, and while progress has been incremental over the past 25 years, it's essential to build optional upgrades that allow migration to quantum-resistant cryptography if needed.