A missile knows where it’s at at all times. It knows this because it knows where it isnt. By subtracting where it is, from where it isn’t, or from where it isn’t, from where it is, Whichever is greater, it obtains a difference or deviation, the guidance system uses deviation to generate corrective commands to DRIVE the missile from a position WHERE IT IS, To a position where it ISN’T. And arriving at that position where it wasn’t, it now is. CONSEQUENTly, the position where it is, is now the position where it wasn’t, and it FOLLOWS that position where it WAS, as now the position THAT IT ISN’T. Ya followin me so far boi?

\”God damn, where did this Lemon come from?\”