Amid heated debates over whether and how the Bitcoin network should upgrade to defend against quantum computing, Strategy co-founder Michael Saylor has issued a warning: the greatest risk to the network right now comes from protocol changes driven by "ambitious speculators." His remarks come as institutions begin to take the quantum threat seriously. Nic Carter, partner at venture capital firm Castle Island Ventures, has repeatedly cautioned that the Bitcoin protocol should be upgraded to post-quantum security standards as soon as possible.
Quantum Risk Goes Mainstream
What was once dismissed as a "theoretical black swan"—the quantum threat—has become a reality the crypto ecosystem must confront. From government agencies to financial institutions, major players worldwide are now developing quantum defense strategies.
Nic Carter warns that the elliptic curve cryptography (ECC) underpinning Bitcoin could, in theory, be broken by Shor’s algorithm, and that quantum computing is now only facing "engineering challenges" to reach that point. This stance has sparked intense reactions within the community.
Recent analyses estimate that roughly 6.7 million BTC—worth over $600 billion—face varying degrees of quantum attack risk. Of particular concern are about 1.7 million BTC stored in Satoshi Nakamoto’s and early miners’ P2PK addresses.
Internal Governance Challenges vs. External Technological Threats
Michael Saylor views the "rigidity" of the Bitcoin protocol as its primary defense. He argues that internal efforts to "improve" the network are more dangerous than external technological threats. This position highlights Bitcoin’s nature as a neutral digital currency. His warning targets software developers pushing for non-monetary uses of Bitcoin, such as embedding NFTs and on-chain images in blocks. This debate has led to Bitcoin Improvement Proposal (BIP-110), which aims to filter non-monetary data from the Bitcoin ledger.
Community divisions are becoming increasingly apparent. One camp wants to maintain protocol stability, while the other advocates for expanding Bitcoin’s functionality, including support for quantum-resistant wallet addresses. This split reveals that Bitcoin’s real dilemma lies in the efficiency of its internal governance.
The Potential Weaknesses of Elliptic Curve Cryptography
Elliptic curve cryptography (ECC) forms the backbone of Bitcoin’s security, enabling both ECDSA and Schnorr signature schemes. However, in theory, a sufficiently powerful quantum computer running Shor’s algorithm could derive private keys from public keys.
Currently, quantum computers are nowhere near large enough to threaten Bitcoin’s security—the gap spans several orders of magnitude. The mathematical complexity increases exponentially with key size. Still, progress is accelerating.
Experts predict that a dedicated machine with about 126,000 physical qubits could break Bitcoin wallet elliptic curve signatures. Others believe that as few as 2,300 logical qubits could compromise Bitcoin’s encryption.
Community Divisions and Technical Conservatism
The Bitcoin community has split into two camps over the timeline and urgency of the quantum threat, with tensions peaking in a recent public exchange between Adam Back and Nic Carter.
Blockstream CEO Adam Back dismissed Carter’s concerns, arguing that Bitcoin users and developers are quietly conducting defensive research, while Carter is "making unfounded statements." Back believes quantum attacks are unlikely for at least 20 to 40 years. On the technical side, quantum-resistant signature schemes already exist, and in theory, Bitcoin could adopt post-quantum (PQ) signatures via a soft fork. The real challenge, however, is execution. An a16z report highlights two major obstacles: slow governance and user inertia.
Bitcoin upgrades are notoriously slow. Looking at the history of SegWit and Taproot, it could take up to a decade to discuss, develop, and reach consensus on a quantum-resistant migration. Moreover, upgrades can’t happen passively—users must actively move their assets to new addresses.
Market Response and Price Dynamics
As for the market response, the relationship between Bitcoin’s price volatility and the quantum threat remains unclear. Bitcoin market analyst James Check notes that concerns over quantum computing have yet to impact Bitcoin’s market price. He attributes the recent downturn to long-term holders selling their Bitcoin into the market.
According to Gate market data, as of January 26, 2026, Bitcoin was priced at $87,692.4 with a market cap of $1.79T. Over the past 7 days, the price fell by 6.21%, but rose 3.19% over the past 30 days.
Notably, Charles Edwards, founder of digital asset investment fund Capriole, issued a more aggressive warning: if Bitcoin is not quantum-ready by 2028, its price could come under pressure, potentially falling below $50,000.
Gate’s data analysis projects that in 2026, Bitcoin’s average price may hover around $89,734.6, fluctuating between a low of $52,943.41 and a high of $126,525.78.
The Dilemma: Innovation vs. Rigidity
Bitcoin now faces a dilemma between innovation and rigidity. Ethereum co-founder Vitalik Buterin has warned that quantum computers could break Ethereum’s elliptic curve encryption by 2028, urging an upgrade within four years. Unlike the indecision in the Bitcoin community, other public blockchains have already launched their quantum defense initiatives. Ethereum, Aptos, Solana, and Cardano all have concrete post-quantum roadmaps.
Jameson Lopp, a core Bitcoin developer, cautions that upgrading the Bitcoin protocol to quantum-resistant standards—even if "everything goes smoothly"—would "take 5 to 10 years." His timeline doesn’t refer to technical development, but rather to the "collective action problem" facing Bitcoin as a decentralized protocol. The reality of the quantum threat is no longer in question; the key issue is whether the Bitcoin community and the broader crypto ecosystem can prepare before the black swan event arrives. The race between time and governance has only just begun.
Millions of "dormant coins" will lose protection forever. These early Bitcoins, unable to migrate with the network upgrade, have effectively become "time capsules" of the quantum era. Their fate is no longer in the hands of their owners, but depends on the pace of quantum advancements and the community’s ability to coordinate. With over $600 billion in assets at risk, Bitcoin’s decentralized governance faces an unprecedented test. Bitcoin expert Willy Woo notes that the risk depends on how and when Bitcoin is stored. Newer Bitcoin addresses do not expose full public keys on-chain, making them less vulnerable to quantum attacks. As one veteran developer laments, "Our greatest threat isn’t quantum computers, but ourselves. If we can’t reach consensus before the threat becomes reality, Bitcoin may end up shackled by its own design philosophy."
