Downvoted? Really? I wonder if that was done after the mods also changed to the link to point at the pdf instead of the PS file originally submitted.

There are times I really don't understand people on HN. I don't care about the downvote, because I don't care about the karma, I just don't understand why people would downvote this.

<fx: shrug />

People are weird - I guess I will never understand some of them. But as an engineer at heart, a model-maker and problem solver, it's like sandpaper on the brain when people act in ways that mystify me, and for which I have no effective, working model.