Bitcoin's transition to post-quantum security could span 5 to 10 years, according to experts. Bitcoin Core developer Jameson Lopp highlighted the complexity of updating the protocol and securing user funds with new signature schemes. While BIP 360 proposes quantum-ready signatures, widespread adoption remains a significant hurdle. Some experts warn of potential risks if the protocol isn't prepared by 2028, though others believe the threat of quantum computing is overstated.