I also had that question in my mind couple of weeks earlier. Well obviously after what he pulled out from the pandorras box this season its ridiculous why he's retiring. But now its the universal truth and frankly speaking he has let himself and his fans down after taking such a decision. I had a feeling that he has done it in order to secure Felipe Massa's future and that's really great of him but why take a decision that's too costly. It's a pity that we die hard fans of Michael will not be able to see him in the prancing horse anymore with his red uniform on.But then again he has given so much to us in all these years we'll never forget him. Thanks MICHAEL. AU REVOIR.