I put AI in quotations because it really isn't an artificial intelligence, it's just machine learning.
Okay, so put it like this, let's say you split a keyboard in two vertically and then rather than have 13 keys on each side, you have one. But your brain still sees the thirteen keys, when you type, based on a local language model, the keyboard would say, this list of words is most often used after this word. However based on an input on the left side X times and Y times on the right, the word is around a certain length and has a likelihood of these letters being used and then it replaces your gibberish with the word you were trying to type. Obviously with machine learning it gets better over time.
We walk with these mini computers, why wouldn't we use them to process communication?