The guy seems like a quantum fanboy who does not understand what he is talking about. Isn't data management separate theory from the hardware - ie: using smaller objects to make computers does not change the management of the data.
I worked on quantum computing full time for 12 years, wrote 60 or so papers, and co-authored the standard text.
I was a grad student at Caltech when Michael was a postdoc there, and knew him from his reputation for general awesomeness long before I met him.
N.B. Michael is also a frequent reader of Hacker News, so be nice. :-) (In fact, he submitted this article himself over a year ago: http://news.ycombinator.com/item?id=289212)