Blockstream Compares Lattice Signatures for Bitcoin Post-Quantum Era

This report is a signal that Bitcoin's post-quantum transition is moving from theoretical debate to concrete engineering trade-offs. The choice of Falcon-1024, despite its implementation complexity, highlights that security and signature size are being prioritized over ease of deployment. The recommendation to stick with hash-based signatures in the short term suggests a cautious, standards-driven path, meaning the real timeline hinges on FN-DSA's finalization. For the ecosystem, the key watchpoint is whether the floating-point issue becomes a practical barrier for widespread adoption, or if it is solved through hardware and software optimizations.