Bitcoin’s Post-Quantum Upgrade Could Take 5–10 Years, Crypto Exec

Highlights:

• Jameson Lopp says Bitcoin upgrades need years for network and user coordination.
• Lopp says no immediate quantum threat but urges preparation.
• Investors warn that the Bitcoin price may drop without post-quantum readiness.

Bitcoin continues to draw global attention as talks around quantum computers increase. Bitcoin core developer and Casa co-founder Jameson Lopp addressed these concerns in a post on X. He explained that moving Bitcoin toward post-quantum standards would take a long time. According to him, the process would require careful planning, mainly due to the network’s structure and the need for coordination among users.

Lopp Explains Challenges of Bitcoin Post-Quantum Upgrades

Lopp echoed the view of Blockstream chief executive Adam Back by dismissing claims of an immediate threat. He said Bitcoin was unlikely to face quantum-related risks in the near term. Lopp added that developers would continue to monitor progress in the field. He also noted that careful protocol changes and a large-scale fund migration could take five to ten years. According to him, the community should remain hopeful while staying prepared.

No, quantum computers won't break Bitcoin in the near future. We'll keep observing their evolution.

Yet, making thoughtful changes to the protocol (and an unprecedented migration of funds) could easily take 5 to 10 years.

We should hope for the best, but prepare for the worst.

— Jameson Lopp (@lopp) December 21, 2025

In another message, Lopp explained why Bitcoin upgrades move slowly compared to private software. He pointed out that agreement across thousands of nodes makes major changes difficult. Unlike centralized platforms, Bitcoin needs wide support before any rule update. 

Because they can upgrade their systems orders of magnitude faster than the Bitcoin ecosystem.

— Jameson Lopp (@lopp) December 21, 2025

Blockstream CEO Adam Back recently disagreed with Castle Island Ventures partner Nic Carter over Bitcoin’s quantum computing risks. Back criticized Carter for emphasizing long-term threats in public forums. He made the comments on X after Carter spoke about quantum-related risks to Bitcoin security.

Bitcoin Community Divided Over Quantum Computing Risks

The Bitcoin community is divided on urgency and timing. Long-term holders and developers advise caution and warn that sudden changes could harm trust. In contrast, some venture capital groups push for quicker action to address future security risks and boost market confidence.

Pierre Rochard, a Bitcoin supporter focused on network safety, said funding is not a problem. He explained that non-profits and venture capital can cover quantum-resistant solutions. He added that a big quantum attack would need state support and would cost a lot. If a government got involved, the burden would be shared, not left to private users. His words showed trust in Bitcoin’s design and protections.

Quantum-resistance solutions are affordable enough to be financed by non-profits and VCs.

Building an actual quantum facility for attacking bitcoin would be so expensive and speculative that the government would have to subsidize it as a collective action problem.

— Pierre Rochard (@BitcoinPierre) December 21, 2025

Samson Mow, a Bitcoin investor and CEO of wallet firm and advocacy group JAN3, also questioned claims that quantum computers could break Bitcoin’s security. “In reality, quantum computers can’t factor the number 21 — not 21 million — 21, without heavy customization to the algorithm,” Mow said. Mow’s remarks underline the limits of existing quantum systems. Current machines struggle with basic mathematical tasks at scale. Many developers share a similar view, stressing that theoretical risk differs from real-world capability during current stages of research.

Even with reassurances from developers, some investment firms still worry about Bitcoin’s price. Their concern is more about perception than immediate risk. Markets often react to fear, even when threats are far off or unproven. Charles Edwards, founder of digital asset fund Capriole, warned that Bitcoin’s price could drop below $50,000 if post-quantum readiness is not addressed by 2028. He linked preparation for the future to investor confidence.

Starting to think we will just need a huge bear market to wash out the idiots who think the Quantum threat to Bitcoin is a joke, and to incentive the maxis into taking action to upgrade the network. If We haven't deployed a fix by 2028, I expect Bitcoin will be sub $50K and…

— Charles Edwards (@caprioleio) December 17, 2025