Bitcoin could lose competitiveness if it delays quantum readiness… and may fall behind Ethereum"

A debate is intensifying over the technology gap between Bitcoin (BTC) and Ethereum (ETH) in strategies for responding to quantum computing.

According to Cointelegraph on the 25th (local time), Nick Carter, co-founder of Castle Island Ventures, said Bitcoin developers are falling behind on quantum-resistance measures.

Carter said, “Elliptic-curve cryptography (ECC) is effectively nearing the end of its lifespan,” adding, “Whether it’s three years or 10, it will ultimately need to be replaced.”

Bitcoin currently uses an ECC-based architecture, and concerns have been raised that advances in quantum computers could render the cryptosystem ineffective.

Within the Bitcoin community, views on how to respond are split. Some argue for upgrading the cryptography, while others say protocol changes could undermine Bitcoin’s core principles.

Ethereum, by contrast, has already established a quantum-readiness roadmap. The Ethereum Foundation is pursuing a plan to introduce quantum-resistant technology across the protocol, targeting 2029.

Vitalik Buterin, Ethereum’s co-founder, has previously mentioned the need for a broad system overhaul, including validator signatures, account structure, and data storage methods.

Carter said, “Ethereum has already set its direction, but other projects are still putting off a response,” adding, “If this continues, the difference could be reflected in ETH/BTC flows as well.”

Bitcoin developers, however, say discussions are ongoing. Ethan Heilman, a co-author of BIP-360, explained that the proposal is among the most actively discussed Bitcoin Improvement Proposals.

Meanwhile, Google recently announced plans to transition to quantum-resistant cryptography by 2029, warning that existing cryptosystems could be threatened.