How to manage a quantum computing emergency

Illustration by Kate Hudson with MidJourney and Photoshop AI. Recently, I wrote about how the Internet community is working towards post-quantum algorithms in case someone develops a cryptographically relevant quantum computer (CRQC) . That's still what everyone is hoping for, but nobody really know when or even if a CRQC is developed, and even in the best case the transition is going to take a really long time, so what happens if someone builds a CRQC well in advance of when that transition is complete? Cl