Nine words, one idea: the thing we call "forever" isn't a huge, unbroken stretch of time but a pile of small, passing moments. The title, "9 Word Life," sets up the joke and the point at once. The poem is itself tiny, and it suggests a whole life can be summed up the same way.
The speaker sounds calm and a little thoughtful, as if they've noticed something quietly true rather than something sad or shocking. "Forever" usually carries a grand, romantic weight, and here it gets cut down to size. Calling memories "short term" adds a gentle sting, since short-term memories fade fast. That leaves a question: if forever is made of things that slip away, how solid can it be?
The mood is reflective, a bit bittersweet, but also comforting. It hints that we don't have to chase forever. We only have to live the moments, one at a time.