this post was submitted on 20 Sep 2023
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Whatever happened to quantum computing that was supposed to replace integrated circuits for cpus?
That’s not really something that’s on the horizon at all. There’s some experimental quantum computing stuff, but it’s not really practical for anything yet (and certainly not in a personal computer!) It’s also likely not going to be better at the stuff we use normal CPUs for. Eventually they might be useful for certain classes of problems, but probably in more of a coprocessor like capacity (kind of like a side unit like a GPU that’s good at certain tasks). Obviously it’s unknown what the future holds, but I don’t think quantum computing is going to replace silicon any time soon.
Quantum computers were never supposed to replace conventional computers. Their theoretical performance is only superior for a specific set of problems that usually are not relevant for every-day computing.
For sure, though I would not be entirely surprised if the class of problems we care about on a daily basis changes if it ever becomes commercially viable. But currently people mostly care about breaking cryptography which… boo.