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Scientists say quantum tech has reached its transistor moment
(www.sciencedaily.com)
This is a most excellent place for technology news and articles.
Oh I'm not saying it is technically impossible, it's the opposite actually, it's developing extremely fast. And usefulness and having QCs in our homes aren't that far apart to be honest. Why would John Doe have a QC at home if he's not trying to create a new medication, or simulate a molecule? Probably for the same reasons he doesn't have an MRI machine in his living room :)