Even Scott Aaronson doesn't really know what they will be good for. Something something quantum simulation something something material science, perhaps. Yet nothing concrete, no example of a problem that they would actually solve. Apart from cracking RSA, which is the opposite of useful.
It seems the whole quantum computer thing only made people like him excited because it's a different kind of computer, not because there is any strong evidence that it will be practically useful.
It reminds me of nuclear fusion: Sounds cool, but it is highly doubtful whether it could ever compete economically with nuclear fission.
It seems the whole quantum computer thing only made people like him excited because it's a different kind of computer, not because there is any strong evidence that it will be practically useful.
It reminds me of nuclear fusion: Sounds cool, but it is highly doubtful whether it could ever compete economically with nuclear fission.