Parallel Universes & Bitcoin: How Quantum Computing Will Break Bitcoin

What happens when quantum computing collides with Bitcoin? In
this episode, we talk to Alex Pruden, co-founder of Project 11,
about why the current cryptographic foundations of blockchain may
not survive the next computing wave.


We dig into what quantum computers actually are, how they break
traditional cryptography, and why digital signatures — the
backbone of crypto ownership — are at risk. Alex also breaks down
Project 11 and the Q Day Prize, which tracks real progress toward
quantum machines that could one day break Bitcoin.


From gas fees to multiverse theory, this episode touches on both
the practical and the existential. If you’re holding crypto and
think you’re safe — you’re not paying attention.


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Guest Links / Additional Material:




https://www.projecteleven.com/ - Project 11
Website:  




yellowpages.xyz - Anonymous post-quantum proof of Bitcoin
ownership




qdayprize.org - Meant to serve as the "canary" to provide
advance warning of a quantum computer that might threaten
Bitcoin






Blog Post "Quantum Wargames" which covers the who, when, and
how of QDay:
https://blog.projecteleven.com/posts/quantum-wargames 




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Timestamps:


00:00 - Intro


01:20 - What is Quantum Computing?


05:10 - Special Forces, Stanford, a16z & Aleo - Alex’s
Background


10:30 - Reflecting on Early Pitches of Solana & Co.


14:50 - The Many Worlds Theory of Quantum Mechanics


21:20 - Quantum Computing Beginnings


23:57 - Challenges


29:30 - The Role of Quantum Computing in Crypto


33:30 - What Does This Mean For Bitcoin? 


38:00 - Stealing Bitcoin with a Quantum Computer 


41:20 - Project 11: Preparing for a Post-Quantum World


43:30 - The Q Day Prize: Who Can Break Bitcoin?


49:45 - Upgrading Chains to Post-Quantum Crypto


56:20 - The Future of Crypto in a Quantum World


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Disclaimer:


TEACHMEDEFI is a provider of entertainment and opinions. We are
neither a broker/dealer nor an investment advisor. This is not a
service for issuing or receiving financial or investment advice.
None of our content constitutes a recommendation – or should be
understood as such – to conduct transactions in securities,
cryptocurrencies, or crypto-assets, or to engage in any of the
investment strategies presented in our discussions or provided
content. We do not provide personalized recommendations or views
on whether a stock, cryptocurrency, crypto-asset, or investment
approach is suitable for the financial needs of a particular
individual.