What is a Quantum Computer Really? - QBP Ep. 1

What is a quantum computer, and does it pose a genuine threat to Bitcoin? In the first episode of The Quantum Bitcoin Podcast, Bitcoin historian Pete Rizzo and co-host Nathan Jeffay begin a structured inquiry into the question hanging over the industry: whether, when, and how quantum computing could break the cryptography that secures Bitcoin.Episode one establishes the foundations:nwhat separates a quantum computer from every machine that came before it: qubits, superposition, and the capacity to represent an entire field of possible states at once.The Quantum Bitcoin Podcast is a series examining the quantum threat to Bitcoin, designed to be watched in sequence. Each episode opens with a discussion between the hosts, presents extended interviews with expert guests on a single key question, and closes with a recap of how the evidence has changed their thinking.Presented in partnership with Starkware.CHAPTERS00:00 Cold open00:46 What this episode covers01:10 Introducing the series and co-host Nathan05:46 Meet the experts: Rob Hamilton and Brandon Black06:38 Classical vs quantum: what a qubit actually is08:06 Why quantum computing threatens Bitcoin's cryptography09:39 Shor's algorithm: what it can and cannot break11:53 Inside the machines: superconducting, neutral atom, trapped ion, photonic15:03 Theory vs practice: the factoring gap18:09 Q-Day: definitions and disputed timelines21:57 Could governments be hiding a quantum breakthrough?24:04 What a quantum attack on Bitcoin would actually require25:56 Post-quantum cryptography: hash-based signatures and BIP-36029:33 Recap: what we learned about quantum computersGUESTSRob Hamilton is the co-founder of AnchorWatch, a Bitcoin custody and insurance company focused on the long-term security of keys and coins.Brandon Black is a Bitcoin educator who has spent years making the protocol's most difficult concepts accessible.FOLLOWThe Quantum Bitcoin Podcast: https://www.youtube.com/@QuantumBitcoinPodcastPete Rizzo: https://x.com/pete_rizzo_Starkware: https://starkware.co/Rob Hamilton: https://x.com/Rob1HamBrandon Black: https://x.com/reardencodeNew episodes release weekly. Subscribe to follow the full series.