I think people overestimate the “instant collapse” angle here. Even Satoshi’s coins moving wouldn’t automatically kill the market — it’s big, but not system-ending by itself. Markets already survive large liquidity shocks all the time. The more realistic issue is the exposed-key problem. If quantum ever becomes real, it’s not just Satoshi coins — it’s a gradual risk across a big portion of supply. But even then, it’s unlikely to be a clean “dump and die” scenario. It would play out over time, and the market would adjust. The bigger takeaway for me is not collapse, it’s pressure. It forces the whole space to move faster on upgrades and security models. And ecosystems like BCH, with more flexible upgrade paths, are better positioned to adapt quickly if that ever becomes real.