Cardano founder Charles Hoskinson said Bitcoin could lose its position as the world’s largest cryptocurrency if quantum computing creates security risks that the network cannot address quickly because of governance constraints.

Hoskinson argued that Cardano’s onchain governance model gives the network more flexibility to approve critical protocol changes when new security challenges arise. He said stakeholders can vote on quantum-related infrastructure changes and other major upgrades through a formal community process.

Speaking in an interview with The Starting Block, Hoskinson acknowledged Bitcoin’s resilience over its history but said quantum computing represents a different type of challenge because it may require rapid technical coordination. According to him, Bitcoin’s governance structure makes major protocol changes difficult to approve, which could become a disadvantage if quantum computing exposes weaknesses in existing cryptographic systems.

The concern centers on whether blockchain networks can replace or harden cryptographic infrastructure if future quantum systems become capable of attacking existing signature schemes. For decentralized networks, that kind of change is not only a software issue; it also requires agreement across participants that run, validate, and build on the protocol.

He also said Bitcoin’s conservative development approach has helped protect the network for years. However, he argued that future technological threats may require faster responses than Bitcoin’s current governance process can deliver.

Hoskinson compares Cardano’s governance model with Bitcoin

Hoskinson said Cardano’s formal onchain governance allows stakeholders to vote on major protocol upgrades, giving the network a defined process for implementing technical changes when they become necessary.

He said blockchain networks may eventually need to replace infrastructure that is vulnerable to quantum computing. In Cardano’s case, he argued, migration plans could be approved through community voting before protocol changes are activated across the network.

Hoskinson described Cardano as a project that builds on Bitcoin’s original vision while addressing limitations that remained unresolved during Bitcoin’s early development. He said Cardano combines decentralization with governance mechanisms intended to support long-term network evolution.

In addition to its governance framework, Cardano uses a proof-of-stake consensus model that supports network upgrades through stakeholder participation. Hoskinson said this makes the blockchain better positioned to adapt if new security standards become necessary.

Bitcoin remains the largest cryptocurrency by market capitalization. Hoskinson said its long-term leadership may depend on how efficiently blockchain networks can implement critical technological upgrades.

Cardano prepares major network upgrade

Hoskinson also said Cardano is preparing what he described as its largest network upgrade to date. According to him, the planned improvement could increase the blockchain’s performance by approximately 60 times.

He said an upgrade of that scale requires careful coordination across the ecosystem. He also emphasized that Cardano’s governance system allows stakeholders to participate directly in decisions involving major technical changes.

Hoskinson connected the planned upgrade to Cardano’s broader strategy of improving scalability, efficiency, and resilience. He said the network cannot afford delays while preparing major infrastructure improvements.

He also said blockchain developers need to prepare for emerging technological risks before they become immediate threats. In his view, governance systems that can adapt efficiently will become increasingly important across the industry.

Hoskinson’s remarks frame governance and security as closely linked issues in future blockchain development. The issue to watch is how major networks define and approve security migrations before a crisis forces urgent action. He said the ability to approve major upgrades efficiently could affect how leading cryptocurrencies respond to quantum computing and other long-term technical challenges.