Bitcoin Core dev floated a wild idea: if quantum computing cracks $BTC keys in the future, force attackers to post collateral equal to stolen coins. Original owners who set traps first can reclaim their funds.

Sounds based but dev calls it a "thought experiment" — aka not happening soon. Quantum threat is real long-term but this is more about signaling preparedness than actual code.

TLDR: Don't panic. Your sats are safe for now. But quantum-resistant upgrades will matter eventually.