londrum - 9:03 pm on May 16, 2010 (gmt 0)
this is nothing like AI, is it. it's just a load of new things that they're introducing to the algo.
AI implies that it's 'learning'. but all they're doing (probably) is factoring in user behaviour -- which is basically just a load of hard data that they're gathering from their toolbar, analytics and other stuff like that.
it's no different to them factoring in old stuff like inbound links.
the only difference this time is that it looks like they're starting from scratch, and it's going to take a few iterations of the algo to get everything back to normal.