The next few years are probably going to be very messy for Bitcoin and Monero. The Quantum computing scam is easily the most telegraphed attack. I am not a believer in Quantum, but I think it will be largely irrelevant whether Quantum can be engineered to scale cheaply and reliably enough to be broadly useful because the incentives line up almost too perfectly (More context: https://controlplanecapital.com/p/a-quantum-resistance-up… ). The BIS (the central bank of central banks that is developing CBDCs with 137 countries) has published quite a few papers on how important "quantum-proofing payment systems" is. I already knew Quantum FUD was inevitable when I saw that CBDCs are being designed with post-quantum cryptography to "defend against future threats". Notice that existing systems rely on "vulnerable public-key encryption". In July 2025, the BIS published their "Quantum-readiness for financial system: a roadmap paper". The first few sentences of the Abstract are quite clear: "Quantum computers may in the future break today's widely used encryption. This paper provides a framework to support the financial system in the transition to quantum-safe cryptographic infrastructures. It emphasises the need to start the transition today – with broad awareness and cryptographic inventory as critical foundations". Then in December, the BIS published their "Project Leap phase 2: quantum-proofing payment systems" paper. "Protecting financial systems from the potential threat posed by quantum computers requires a proactive and coordinated approach. Challenges go beyond technical aspects and include awareness, resource allocation, competence development, inventory, pilots, governance and more. Project Leap Phase 2, a collaboration between the BIS Innovation Hub Eurosystem Centre, the Bank of Italy, the Bank of France, Deutsche Bundesbank, Nexi-Colt, and Swift, tested post-quantum cryptography in an operational payment system. The experiment replaced traditional digital signatures with post-quantum cryptography, while sending liquidity transfers. It involved modifying numerous system components to ensure compatibility with updated cryptographic libraries. " In June 2025, the EU published their "A Coordinated Implementation Roadmap for the Transition to Post-Quantum Cryptography" paper. " The EU Member States, supported by the Commission, issued a roadmap and timeline to start using a more complex form of cybersecurity, the so-called post-quantum cryptography (PQC). Quantum computing has been identified as a threat to many cryptographic algorithms used to protect the confidentiality and authenticity of data. This threat can be countered by a timely, comprehensive and coordinated transition to Post-Quantum Cryptography (PCQ). This document is the first deliverable and is meant to be a first high-level paper aimed at Member States. It includes a set of recommendations that Member States need to implement for a synchronised transition to PQC, as well as measures to ensure that all stakeholders are well informed on the quantum threat to cryptography. " These are just 3 recently-published papers of many. They are written as if Quantum Computing being able to scale cheaply and reliably enough to be broadly useful is a foregone conclusion. The coordination between ALL countries is insane. If you want to be a part of the new financial system, you'll have to play game. As I've shown in this article ( https://controlplanecapital.com/p/a-quantum-resistance-up… ), a quantum-resistance upgrade would be terrible for Bitcoin (and Monero). The Coordination tax I've outlined in this article ( https://controlplanecapital.com/p/bitcoin-will-fail-as-ma… ) is why the next few years are probably going to be very messy.