Ask Lemmy
A Fediverse community for open-ended, thought provoking questions
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, toxicity and dog-whistling are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
6) No US Politics.
Please don't post about current US Politics. If you need to do this, try !politicaldiscussion@lemmy.world or !askusa@discuss.online
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
view the rest of the comments
The UK govt announced £162m in cuts to research council funding last month, then this month they announced £2bn for a massive quantum computing project. I'm all for blue sky research but the field is basically a giant money pit. £2bn would have bought multiple general purpose supercomputers that could have been used for biology, materials science, astrophysics etc. The quantum computing research is inevitably going to yield a quantum processor with less than 1kb of memory that can only run for a few nanoseconds. The government is disproportionately funding this stuff because of the siren song promise that quantum computing will help them break encryption, but the field has taken so long to materialise anything useful that we now have quantum-resistant classical encryption algorithms. Also, plenty of physicists are now skeptical of the idea that quantum computers will be intrinsically faster than classical computers for most tasks.
Tbh, this isn't really that new of an idea. Quantum computing requires temperatures less than 3 Kelvin. It doesn't matter how efficient your processor is, getting anything down to that temperature requires a lot of cooling equipment, so much that it's utterly impractical for general use.
It's kinda like analogue computing, aka comuting with analogue signals instead of digital. You're able to solve problems extremely fast, on par with (if not superior to) quantum computing. The downside is that the circuits have to be custom designed for the use case, making it impractical for most tasks.
At the time people thought that you might build new supercomputers with an on-site cryostat (or something like that) housing a bunch of QPUs.