Quantum computing poses existential threat to Bitcoin
The bearish thesis argued is that recent algorithmic breakthroughs significantly lower the hardware barrier for quantum computers to crack Bitcoin's cryptographic security, risking the compromise of up to a third of its supply.
The argument
The hosts discussed a Google research paper showing that software improvements reduce the number of logical qubits needed to break ECDSA signatures. They argued that Bitcoin faces a severe coordination dilemma regarding how to handle 2.3 million dormant or lost 'Satoshi' coins that will become vulnerable to quantum theft, as burning or locking them violates core property rights.
The thesis, stress-tested
✓ What validates it
- ✓Physical qubit scaling in quantum computers successfully transitioning to larger numbers of logical qubits
- ✓Bitcoin developers failing to reach a consensus on a post-quantum migration roadmap
▸ Risks discussed
- ▸Implementing post-quantum signatures could degrade Bitcoin's transaction throughput from 3 TPS to 0.3 TPS
- ▸Hard-forking to address vulnerable coins could trigger another chain split similar to the Bitcoin Cash war
- ▸A nation-state could develop and deploy these capabilities in secret without warning
Hear it yourself
"Google released a major quantum warning directed squarely at us, David, not you and me, but at crypto, let's say, they have an algorithmic breakthrough that just 20 x ed progress towards cracking ECDSA and some of the crypto signatures that underlie Bitcoin, Ethereum, and basically everything we do here."
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