It won't, for instance, bite your foot; it won't move suddenly out of your way; it won't propel you backwards; and it won't turn into a 10-thousand-strong procession of Brazilian carnival dancers that trample you to death at the beat of a Samba. And, similarly, prophesy is the function of the "door handle model" that you fire up when you feel like being on the other side of the door; and of the "Jim model" when you're considering inviting your friend Jim to a jog in the park; the "H key model" when you want the letter H to appear on your monitor; the "my skin" model when you decide how hard to scratch your itchy arm without shredding it; and all the other things you do, second by second, as you live your life. Those models are not the same as the physical things they are modeling.