Hmmm. I don't know, but I've read almost all his books and novelettes. Maybe that's where I get some of my ideas. He's a hell of a lot better to ponder with than the 12 fake anti-vax 'doctors' spreading lies on the internet. You can't really go too wrong with Bradbury. I liked 'I Sing The Body Electric' a lot for some reason. Supposedly, he'd never driven a car or got a drivers license.