When anything goes digital, let alone something as immaterial as a book, there is a tendency to see it as just in the air to be taken, and to lose the sense that somebody once made it.
I had a fear of becoming anything, a fear of becoming a specialist. I might have become a doctor, but if you become a doctor, that's your specialty in life and you are defined by it. One of the attractions of being a writer is that you're never a specialist. Your field is entirely open your field is the entire human condition.