A little redundancy is a good thing. It compensates for the randomness with which many posts fall through the cracks. This article is an example. It's interesting and surprising (surprised me, at least) and deserves a discussion. Had it got one the first time around I wouldn't have reposted it.

It has fallen through the cracks again though (edit: or so it seemed). Perhaps somebody else will figure out how to repost it in a few days :)