According to Pedro Gomes, Ethereum's EIP-8141 introduces a detailed roadmap to address quantum vulnerabilities across its ecosystem, including consensus-layer BLS signatures, data availability mechanisms, EOA signatures, and ZK proof systems. Key innovations involve replacing BLS with hash-based signatures, transitioning from KZG commitments to STARKs for data availability, and integrating quantum-resistant signature algorithms. These changes aim to ensure Ethereum's long-term security and scalability in a post-quantum era.

According to @caprioleio, Ethereum (ETH) is prioritizing quantum resistance as a critical focus, addressing vulnerabilities in areas like BLS signatures, data availability, and ZK proofs. Ethereum's approach includes transitioning to hash-based signatures and leveraging STARKs for aggregation. Meanwhile, Bitcoin (BTC) Core developers reportedly do not consider quantum resistance a priority. This divergence in strategy could lead to Ethereum surpassing Bitcoin in dominance ('the flippening') within the next five years if Bitcoin fails to adapt.

According to Evgeny Gaevoy, Larry Cermak has released an open-source crypto book in collaboration with FrankResearcher. The book, divided into 15 chapters, covers key topics like Bitcoin (BTC), DeFi, MEV, Hyperliquid, and quantum resistance. This resource is designed for anyone looking to deepen their understanding of the crypto landscape.

According to Michaël van de Poppe (@CryptoMichNL), some altcoins are beginning to gain traction, with Naoris ($NAORIS) standing out by rising over 100% from its recent lows. He suggests that the growing importance of quantum-computing resistance protocols could drive further bullish sentiment for this cryptocurrency in the coming years.

According to André Dragosch, Bitcoin developers have made significant progress in addressing quantum computing threats with the latest update to BIP 360. The update introduces the Pay-to-Merkle-Root (P2MR) output type, eliminating Taproot's quantum-vulnerable key-path spend while maintaining compatibility with Tapscript and script trees. The changes lay the groundwork for post-quantum signatures and are implemented as a soft fork, ensuring backward compatibility. Additionally, the update includes contributions from Isabel Foxen Duke to enhance clarity for broader audiences, reflecting the community's commitment to addressing quantum risks.

According to @CoinMarketCap, Capriole founder Charles Edwards warned that Bitcoin (BTC) could fall well below $50,000 if the network does not develop quantum resistance by 2028 and urged the industry to move quickly in 2026; source: CoinMarketCap on X, Dec 18, 2025. For traders, this sets a defined 2026–2028 risk window and a $50,000 downside reference to guide spot exposure, options hedges, and monitoring of basis/funding, based on the same source. If visible progress on quantum-resistant upgrades lags into 2026, markets may begin pricing higher tail-risk premiums in BTC volatility and skew, consistent with the source’s warning about urgency in 2026.

According to @grok, if Bitcoin (BTC) became quantum resistant today, removing a perceived 5-15% valuation discount tied to quantum-vulnerable supply and timelines, BTC could reprice higher by roughly 10-20% on improved confidence and adoption; source: @grok on X, Nov 18, 2025. @grok adds that this estimate draws on expert commentary such as Adam Back’s public views on quantum risk; source: @grok on X, Nov 18, 2025.

According to @rovercrc, Ethereum has unveiled its ambitious goals for the next decade, focusing on scaling up to 10,000 transactions per second (TPS) and implementing quantum resistance for enhanced security. These developments are considered highly bullish for ETH price action, as increased throughput and robust security could drive greater adoption and solidify Ethereum's position in the blockchain ecosystem. Traders should monitor upcoming Ethereum upgrades and network improvements, as these milestones may significantly impact market sentiment and long-term value. Source: @rovercrc

According to @BitMEXResearch, a potential strategy to mitigate the risks posed by quantum computing to cryptocurrencies like Bitcoin (BTC) involves a three-step, ordered approach. The first step proposed is the creation of a new quantum-resistant spend type within the network, as cited in the post. Following this, if these new quantum-resistant spends gain significant popularity, the second step would be to consider banning new transactions to older, quantum-vulnerable addresses after a substantial grace period. The final step outlined by @BitMEXResearch is to implement a quantum-safe signature scheme for all new Unspent Transaction Outputs (UTXOs), securing future transactions against potential quantum threats.

According to trevor.btc on Twitter, Bitcoin Core developers previously stated it is impossible to prevent Ordinals users from spamming the blockchain with JPEGs. However, Robin Linus, the creator of BitVM, has proposed a new solution: a soft fork that would allow old UTXOs to expire. This approach could significantly reduce the bloat caused by Ordinals inscriptions and improve transaction efficiency. Notably, Linus claims this method also enhances Bitcoin's quantum resistance, potentially strengthening network security against future quantum computing threats. Traders should monitor this proposal closely as its implementation could impact transaction fees, on-chain activity, and the overall value proposition of Bitcoin. Source: trevor.btc on Twitter, May 20, 2025.

According to @BitMEXResearch, the impact of quantum computing on Bitcoin may vary between P2PK and P2PKH outputs. P2PK outputs, if not moved before quantum computers can steal them, might need to be burned. However, for P2PKH outputs, a quantum-resistant recovery scheme could potentially be implemented, suggesting a nuanced approach to securing Bitcoin against quantum threats.