BTC253: QUANTUM COMPUTING AND BITCOIN W/ CHARLES EDWARDS
BTC253: QUANTUM COMPUTING AND BITCOIN W/ CHARLES EDWARDS
11 November 2025
Preston and Charles dive into the fundamentals of quantum computing, its transformative applications, and the looming threat it poses to Bitcoin encryption.
They break down the distinction between physical and logical qubits, real-world use cases, and the exponential progress in the field. With timelines tightening, they call for urgent collaboration across the Bitcoin and cryptography communities to prepare for a post-quantum world.
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IN THIS EPISODE, YOU’LL LEARN
- How quantum computing works, including superposition and entanglement
- The difference between physical and logical qubits—and why it matters
- Key industries already benefiting from quantum applications
- Why quantum computing could break Bitcoin’s encryption within 5 years
- The significance of BIP360 and post-quantum migration strategies
- How China’s investment and U.S. executive actions shape the race
- Preston’s skepticism of inflated quantum marketing claims
- How AI might accelerate quantum computing development
- Which Bitcoin addresses are most vulnerable to quantum attacks
- Why collaboration is critical to defending Bitcoin’s trust model
TRANSCRIPT
Disclaimer: The transcript that follows has been generated using artificial intelligence. We strive to be as accurate as possible, but minor errors and slightly off timestamps may be present due to platform differences.
[00:00:00] Intro: You are listening to TIP.
[00:00:06] Preston Pysh: Hey everyone. Welcome to this Wednesday’s release of the Bitcoin Fundamentals Podcast. Today I am joined by Charles Edwards to talk about quantum computing—what it really is, where it’s headed, and what it means for Bitcoin security. We break down the differences between physical and logical qubits, the debate around how soon Q-Day could arrive, and how upgrades like BIP360 might protect the network.
[00:00:29] Preston Pysh: We also explore the broader impacts that quantum technology could have on AI, material science, and finance. This is one that you will not want to miss, so let’s jump right into the conversation.
[00:00:40] Intro: Celebrating 10 years. You are listening to Bitcoin Fundamentals by The Investor’s Podcast Network. Now for your host, Preston Pysh.
[00:01:02] Intro: And now here’s your host, Preston Pysh.
[00:01:14] Preston Pysh: Hey everyone. Welcome to the show. I’m here with Charles Edwards, and we’re talking about a pretty difficult topic, but we’re going to try to make it accessible and talk through the reality of what we think it is. We’re talking about quantum computing. This is going to get pretty Bitcoin-heavy, but the topic obviously goes beyond Bitcoin. And Charles, as someone investing in this space, I’m very curious to go down the paths that go beyond just Bitcoin itself.
[00:01:45] Preston Pysh: But in short—welcome to the show. Excited to get into this with you.
[00:01:48] Charles Edwards: Yeah, likewise. Glad to be here. It’s been too long, I think—four or five years maybe.
[00:01:55] Preston Pysh: Yeah, it’s been way too long. I’m excited to have you back on the show, Charles.
[00:02:01] Preston Pysh: Likewise. So let’s start here. I made a video about quantum computing, probably back in January 2025, and I was just trying to define what it is and how it works, just so I could wrap my own head around it. Because if you can’t describe what it is and what it’s doing, it’s difficult to understand what problems it’s going to solve in the real world.
[00:02:30] Preston Pysh: This is a really hard question, and you would think it’d be the easiest thing to cover, but I find it one of the hardest: what in the world is quantum computing? How does it work? Give a layman’s overview from your point of view.
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