It appears that the only thing teams have been able to predict with any accuracy this year is that Formula One is just too damn unpredictable at the moment.
Maybe it has something to do with the 'higher force' that Flavio Briatore referred to after Michael Schumacher's retirement in Japan. Or maybe it is the result of a tyre war that has left rubber so sensitive to temperature that a few degrees of change can swing it completely Bridgestone or Michelin's way.
Whatever the root cause, it has produced a season that will, in a few years' time, be looked back on as absolutely vintage. Two drivers at the top of their game, in two perfectly matched cars, being readied by two battle-hardened teams delivering everything expected of them.