[rrss1122]

I'm not sure how quantum computing would be explained, but if it is classical then yes, quantum computers really wouldn't provide any benefit. This brings to mind headlines recently on how so-called quantum computers could not outperform optimized classical computers on algorithms specifically designed to cater to a quantum computer's strengths. Of course, then you would have to argue whether there actually are any quantum computers in existence today, or the quantum computers that are claimed to exist are actually classical computers exploiting some quantum effects.

[lfuller]

The D-Wave devices that you are referencing are actually quantum annealing machines, not universal quantum computers. A quantum annealing machine is to a universal quantum computer what a mechanical computer is to a digital processor.