The Missile Knows Where It Is (Patreon)

The missile knows its current spot

It calculates with all it's not

By knowing where it isn't see

It finds its path from A to B

Subtracting from its destined flight

The place it's not to where it likes

It gains a value sharp and clear

A deviation it holds dear

With deviations it will guide

Corrective commands it provides

From where it is to where it's not

To hit the target on the dot

And if it finds itself astray

In places where it cannot stay

It quickly makes the needed switch

To correct the error without a hitch

It knows just where it used to be

And where it's not it can foresee

With calculations swift and bold

It plots a course precise and cold

The GEA with steady hand

Corrects the course as it was planned

The missile's logic pure and strong

Ensures it won't be led along

It's not confused it's very keen

Within reason it's a machine

It knows its past its future bright

Subtracts adds up with all its might

By differentiating its place

From where it's not it runs the race

The algebraic sum it's true

Gives deviation's cue

And with this change it finds its way

An error known as its dismay

But with each calculation's turn

It's closer to the point of no return