Theoretically there could be dozens of news.yc front pages, each based off a different algorithm but all drawing from the same new page. Then you could vote front pages up or down, with the algorithm of the currently-winning front page hot swapping with the the previous algorithm. Of course you would need to do the same to select the algorithm that controlled the gravity on the algorithm voting page, to make sure that people didn't vote for fluff algorithms. And so on. Maybe the ideal news.yc is just news.yc all the way down.