The danger of quantum computing growing capable of factoring large numbers is not only that public key cryptography that enables private communications, data privacy, data integrity, and Bitcoin transaction verification. It is that replacing the cryptographic algorithm in Bitcoin would require a hard fork. Once Bitcoin becomes the dominant money, such an event would provide an opportunity to change the rules encoded into the protocol. The enemy class would seek to inject authoritarian controls (KYC, AML, lawful intercept) into the protocol at that opportunity.

This thought arose while listening to this podcast.

https://open.spotify.com/episode/0IIp1LOwQg1pNpiNxTDrUp?si=ws9HStHLQPavQ2T77U08Cw