To tell you the truth, I almost don't want to spoil it for you. Your particular interest, at the intersection of media and AI, makes me believe that you would find the book worthwhile.
The structure and exposition of his arguments is what makes the text particularly engrossing, and I am loath to try to summarize what is best experienced within its intended context.
But I'll give you some copied paste from Wikipedia to get you started:
> McLuhan's insight was that a medium affects the society in which it plays a role not by the content delivered over the medium, but by the characteristics of the medium itself.