I interrupted this fascinating read to tell that "actually", quantum computers are great at multi-dimensional calculation if you find the correct algorithms. It's probably the only thing they will ever be great at. You want to show that finding the algorithm is not possible with our current knowledge.

anyway, making the computer do the calculation is one thing, getting it to spew the correct data is another.... But still, the article (which seems great at the moment) brushes it of a bit too quickly.