"Bieruck also admits that no known computer can check the accuracy of calculations performed with the new quantum simulator."

Based on this, one would assume that this computer is useful for phenomenal accuracy rather than phenomenal speed. As far as I know, however, that's really quite useless - I don't recall significant digits to be a serious limiting factor in most computing problems.

And if that's not it, well - if you're doing fluid dynamics or weather simulation, the idea of checking accuracy is meaningless to begin with.

What gives?