I really don't understand the point of this article. The author seems to be honestly interested in exploring GPU computation, and is clearly reasonably well-rea

I really don't understand the point of this article. The author seems to be honestly interested in exploring GPU computation, and is clearly reasonably well-read in the field. The sarcasm is just really off-putting, though, and the article really presents ver little of actual value--this one trivial computation happens to be slower; so what?