>>1198
>>1252
This actually makes sense.
The missile knows when it is and where it isn't.
So to move the missile simply says "I'm going to move where i am not, therefore i won't be where i am now", this allow him to know both where he is going and where it was.
In the case of it not being where it was supposed to be the missile still knows where he isn't and where it was so he can locate where it currently is, which help him going back to moving to where it isn't and locating where it won't be.