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Physical scaling of quantum qubits is extremely difficult
โThe I think the quantum field is full of these, you know, we'll call it if this is possible, then all we have to do is build it kind of perspectives. And they totally just deny the realities of the difficulty in building physical things that manipulate tiny subatomic particles. Like these are incredibly difficult things to build and especially difficult to scale, right?โ
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Cryptographically relevant computers remain decades away
โI have an emotional confidence that we're 50 to 100 to forever years from a quantum computer breaking a meaningful cryptographic system. ... The evidence is it's going to be just hard-fought, tiny wins, new technologies. There's just no evidence that it's going to come any time in the next decade, or really any time in the next 20 years.โ
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Theoretical breakthroughs often fail in physical implementation
โI think it's very obvious that in the theoretical realm of, like, what is possible, they are making advancements. However, there is a chasm between what we can do and the physical reality of building machines that can actually sustain an uptime and persistence to make that theoretical advancement an applicable reality.โ
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High-rate error correction is currently unproven theory
โAnd that's basically my summary of a lot of these quantum papers, is if this thing that hasn't ever been done works, then we can do this easy thing. And that's, yeah, so that's where the relationship is... it depends dramatically on what types of error correction you can do on this physical architecture.โ
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Bitcoin upgrades are unnecessary without a scaling roadmap
โWe'll see doublings, like we saw with transistors, of the same technology progressing through a scaling roadmap. And then we'll be able to say, oh, now it's doubled three times. ... But until we see a roadmap like that, that's the successful scaling in one technology, the evidence is it's going to be just hard-fought, tiny wins.โ
