In the Word Was the End, and the Word Was with End

The last sentence, the last word
Must be inevitable.
Will it be spoken or signed?

Maybe it will be whistled.
Will a human produce it
Or a machine or something

Descended from one of those,
And why will it be the last?
Certainty, uncertainty,

The universe gives you both,
But it doesn’t distinguish.
Everything changes, therefore,

Whatever’s around won’t be,
That’s guaranteed. No telling,
However, when that will be,

Or what way. Why do you ask?
There’ll be a last word one day,
However long your words last.