No, no, no; you're not giving it he respect it deserves. Jos IS the boss. He will get Monza's weather right, whether you believe it or not. He could raise the spirit of Maurice Trintignant to deposit a slick of his own excreta on the entrance to Parabolica on lap 37 if he wanted to but he won't now because I've let you in on the secret. Rest assured, if Jos the Boss SAYS what the weather will be then it WILL be, he didn't say it WOULD rain at Spa so no argument that you can posit will defeat he indefatigable truth that he was not wrong.