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I highly doubt these things will be released any time soon, even though they're fully functional right now. first of all, the government wants access to these things first. current encryption would largely become useless against a personal quantum computer.

and most importantly, quantum computing would pretty much put all the chip makers out of business, at the very least drastically reduce their customer base. think about it, the only reason why we upgrade our pc's is because something takes 10 or 30 seconds instead of a minute and a half. when you get down to the scale of everything happening in a millionth of a second difference between applications big and small, you won't even notice a time difference, all programs will seem to run in real time.

of course they'll probably come up with more sophisticated programs that will take time to work even with that kind of processing power. but for the average user those small time differences will not matter as much. that is essentially how companies are able to sell us new computers. if there was only a 1 second difference between all programs you could possibly want to run, you'd be less inclined to bother upgrading. going from the chips we know today to quantum computers, is more astronomical in advancement than going from the wright brothers glider to the most sophisticated air craft we have today in the blink of an eye.

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