Gimme dat Ding

Went 4/5 this time, predictions are getting sharper. Still come on, I should have been 5/5! What was Ding doing there? The whole idea with Rc8 and following it up with b4 and c5, basically spitting a pawn for nothing, was totally weird. Why not simply play c6 and treat it like a Breyer? I guess we all have a pretty good idea how Topalov must have felt about it.