There is an idea bouncing around my brain for a pipe-dream science fiction book I could write, about the rise of the first truly sentient (or sentient-appearing) AI & its effects on the world. It is beginning to get to the point where I am considering whether I need to actually start writing this book before this "sci-fi" concept becomes a mundane reality.
Yes, write your book.
I've been trying to fix the dramatic conflict in mine for the last few years (spare time) without much progress, and mine has a specific calendar year backed into it.