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Septentriones's avatar

Wholeheartedly agree with the points in Peco's post, but if anyone's worried about Q-Day, it's not going to be a day and we're mostly going to handle it the same way we deal with any other software security vulnerability. (Spoiler: quantum-proof cryptography is already here. But hold that thought.) It isn't a binary, before we didn't have it now we can use it for everything; we already have it, but it's physically large if I understand correctly and in any case hard to make in the first place (imagine trying to operate computers near absolute zero; real cold fusion stuff, here) and _the capacity is too low to be practical_ – but when it gets practical, it's going to get more practical *gradually*, increasing in bandwidth from "we _can_ decode a secret" to "we can decode this many secrets an hour" possibly even all the way up to "we can decode a secret a minute", etc. (_if_ we can continue increasing its scale like that). Oh, and "we" is the companies/governments that can afford it (see above about the impracticality of the hardware), most of whom have little motivation outside of a war (in which we'd have to worry about cyber-attacks anyway) or spying on specific targets, to (ab)use such capabilities. All of which means that rather than a switch getting flipped and information being suddenly visible instead of secure, rather there will be slowly increasing pressure to switch to other encryption algorithms, which also already exist. So you might someday hear news like, "Well another quantum attack happened this month, but if you upgraded your devices and apps a year ago" (which we all should do in general) "then you're already safe." Except of course, that's basically how security vulnerabilities are handled already: someone finds an attack vector, software gets updated; but for however many years the blame will be laid on quantum computers, for a situation that won't be fundamentally different than information security is today.

(Somewhere along the line, the Feds might decrypt a bunch of data they intercepted years or decades ago. That one thing will probably be… interesting, depending on whether any of the data still matters by the time it happens.)

As for anything "miraculous" these computers could do… probably not that either. They can't compute anything classical computers can't. They just can solve _certain specific complex math problems_ more simply (therefore, theoretically _faster_ if we can ever scale the capacity enough). It _is_ interesting that tech has to keep promising "miracle" breakthroughs that haven't happened and may never happen, though…

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Stephen's avatar

Excellent. I think I have learned more about tradition via these Weekly roundups than I have anywhere else.

I hadn't even drew breath and before I knew it I was off reading the two insightful articles penned by Mr. Flanders on 1P5.

Then back to TWR for the rest of paragraph!

It always is a few hours well invested in diversions and recommendations to get through the weekly roundup. Thanks.

On a personal note, I'd recommend everyone to take the plunge and support the Kwasniewski substack with a paid subscription. I'm just nearing my first anniversary of paid subscription, and I find myself slapping myself on my back for finding such a treasure of traditional Catholic resources and commentary.

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