It all depends on the project. For example, I backed Double Fine Adventure, which is on the bottom section in the lateness diagram. The thing is that it got overfunded by a factor of 8. The original plan was for a $400,000 game, and you can't spend much time on such a game if it is to be feasible. But the funding exceeded $3 million, so of course the game is going to take longer to design, because it's going to be bigger.