Which tech stocks? Google ($GOOG, $GOOGL) is up over 5% YTD; Netflix ($NFLX) is up over 30% YTD! Your link mentions Palantir and ARM, but I don’t see any signs of their respective businesses (selling database software to authoritarians, selling microchip designs) slacking off. I think that it’s more useful to think of the current AI summer as driven by OpenAI and nVidia specifically. Note that nVidia ($NVDA) is up 30% YTD too. The bubble is still inflating and is not yet bursting; the pop will be much quicker than you expect.
I think that you ought to figure out whether you’re a quantum-computing denier. Folks have been saying that quantum computing is impossible since the 70s, implausible since the 80s, lacking applications since the 90s, too energy-intensive since the 2000s, and requiring too many exotic materials since the 2010s. This decade, it’s not clear what the complaint is. I’m not sure what you’re imagining in terms of real-life intrusion, but IBM has been selling access to their quantum computers and simulators for several years now and I don’t think that you’ve substantiated any evidence of harms.
(An anti-IBM argument will not work due to a very specific analogy: the reason that we have ubiquitous Linux today is because IBM was its biggest corporate booster, fighting an important series of court cases and plastering pro-Linux advertisements which vaguely argued that Linux was the buzzword of the future. IBM spray-painted “Peace, Love, Linux” graffiti on San Francisco sidewalks in 2001.)
It is true that we know only two useful algorithms for quantum computers. One is a generic speedup for any search and the other is a prime-factoring algorithm that happens to break certain specific encryption algorithms. Given that it is an open question whether cryptography works in the first place, though, we don’t have any better plan than to avoid those broken algorithms. The entirety of post-quantum cryptography is about moving away from those specific algorithms which are broken, not about using quantum computers to perform encryption. Fortunately, the post-quantum movement has been active ever since Shor’s algorithm was discovered, beginning work in the late 90s, and the main obstacle has been our inability to discover provably-good cryptographic primitives. It is crucial to understand that we cryptographers know that progress in maths and engineering will obsolete our algorithms; we know that the Internet only stays secure because people update their computers every few decades.
I’m not asking you to understand P vs NP vs BQP. I’m not asking you to know KS, PBR, Hardy’s or Holevo’s theorems, or even Bell’s theorem. You didn’t make any technical claims other than the common-yet-sneerable skepticism of Shor’s algorithm, easily cured by a short video by e.g. minutephysics or Veritasium. But I am asking you to be aware of the history before making historical claims.
(Also, if any motherfucker starts repeating 't Hooft anti-quantum arguments then they’re going to get the book thrown at them.)
We literally have a generic speedup for any search. On one hand, details of Grover’s algorithm suggest that NP isn’t contained in BQP, so we won’t be solving the entirety of maths with it. On the other hand, literally any decidable mathematical question for which you would have had to search for years for a witness, Grover can search for in days, as long as you have enough qubits. I don’t claim that this is attractive to the typical consumer, but there will be supercomputing customers who are interested.
Who is “they”, specifically? Neither of you actually want to talk about who’s in this space for some reason. It’s IBM and Google. It’s incumbents that have been engineering for about two decades. It’s the maturation of a half-century-old research programme. Your problem isn’t with quantum computers, it’s with Silicon Valley and the funding model and the revolving door at Stanford, and there’s no amount of quantum research you can cancel which will cause Silicon Valley to stop existing. This site is
awful.systems
, notawful.tech
.BTW the top reply right now starts with “even if quantum computing isn’t snake oil…” No evidence. For some reason y’all think that it’s more important to be emotional and memetic than to understand the topic at hand, and it has a predictable effect on our discourse, turning thoughtful regular posters into reactionaries. What are you going to do when bullshitters start claiming that quantum computers can do anything, that they do multiple things at once, that they traverse infinite dimensions, that they can terraform the planet and bring enlightenment? You’re gonna repeat paragraph 3 of 5 above, the one that starts, “it is true that we know only two useful algorithms for quantum computers,” because that’s where the facts start.
Also, I think that you don’t understand my ultimate goal. I’m trying to push the most promising writer on the site into doing more research and thinking more deeply about history. Quantum mechanics happens to be a crank-filled field and that has caused many of y’all to write as if all quantum research is crankery. They write, “alleged encryption-breaking abilities,” and you’re irritated that I’m “ranting” because “extremely little of this has anything to do with a technology,” while I’m irritated precisely because you think that this is a technology-neutral position and not literally part of why the TLS suite has to be upgraded occasionally.