The Ledger
Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.
why aren't all 9 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable
Preskill: Quantum error correction is now achievable in the laboratory
“But at first that was just kind of a theorist fantasy. It was a little too far ahead of The technology, but, you know, 20 years later, the technology is catching up, so now this idea of quantum error correction has become something you can do in the lab.”
Preskill: Grover's algorithm only doubles tractable cities in traveling salesman problems
“And in practice, it's not that big a deal. What it means is that, you know, if you have the same processing speed, you can handle about you know, twice as many cities before the problem becomes too hard to solve as you could if you were using a classical proce…”
Preskill: Current quantum computers are too small for proposed algorithms
“We have algorithms that have been proposed, but, which we can't really run currently, because our quantum computers aren't big enough, on the scale that's needed to solve problems really, people really care about.”
Preskill: Current quantum tech achieves gate error rates around a few parts per thousand
“More or less with the technology we have now, you can have a gate error rate of a few parts in a thousand, you know.”
Preskill: Superconducting qubit coherence times grew 10x every three years
“And for the superconducting circuits, those coherence times have increased about a factor of 10 every three years, going back 15 years or so.”
Preskill: Superconducting circuits execute gates faster than trapped-ion qubits
“They have the advantage of being faster than the time to take the cycle time, the time to do a gate is faster than with the trapped ions.”
Preskill: Quantum computers can break both RSA and elliptic curve cryptography
“RSA, which is one of the ones that's widely used, as typically practiced today, the, to break it, you'd have to do something like factor a number, which is Over 2000 bits long to 20 48. And that's, you know, that's too hard to do now. But that's what quantum c…”