I've been a huge fan since I discovered his work in 1988. What has impressed me so much, recently, is the way little bits from his earlier work (phrases, ideas, images) keep popping up. As if the first time I saw them he was just planting them, and now they're mature. And as much as his work changes every decade or so, it still seems like a sharper and sharper iteration of his first stuff.
I'm imagining a writer who keeps going back in time, killing himself, and releasing better and better versions of his first novel.
Anyone is welcome to use that idea, if they want to make fiction based on it. No one is allowed to actually do it, please.