Epicenter - Learn about Crypto, Blockchain, Ethereum, Bitcoin and Distributed Technologies What will Quantum Computing Change?
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Dec 3, 2025 John Lilic, an Ethereum OG and consensus engineer, joins forces with Stefano Gogioso, an Oxford physicist and co-founder of NeverLocal, to explore the impending impact of quantum computing on cryptocurrency. They delve into the alarming vulnerabilities in crypto security, revealing how quantum algorithms could break current encryption methods. The duo discusses 'harvest now, decrypt later' threats to coin privacy and introduces groundbreaking 'Quantum Money' that leverages physics, not consensus, to combat double-spending. Prepare for a mind-bending look at our digital future!
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Roadmaps Point To A 2030 Threat
- Quantum roadmaps from startups and big tech point to enough logical qubits to threaten elliptic-curve crypto around 2030.
- John Lilic argues this convergence makes crypto's current security assumptions materially time-sensitive.
John's Quantum Awakening
- John Lilic recounts meeting quantum-native teams and realizing the timeline urgency for crypto security.
- That encounter triggered his shift from dismissing quantum as decades away to investing and advocating readiness.
Shor's Algorithm Threatens ECC
- Shor's algorithm and related quantum subroutines can drastically speed up factoring and break RSA/ECC-style primitives.
- Stefano Gogioso explains this as a byproduct of quantum control over physical Fourier-like transforms.