Why write a book?

I didn't wake up one morning expecting to write a book. I did not feel I had the time or creativity to write a work of fiction. The idea came about while I was sick with a 103.1 F temperature. When I woke up from my delirious state, I recalled my dream to my wife. She insisted I write a book. I immediately dismissed that idea because I thought it should be a movie.

I thought about the dream for several weeks and started kicking around ideas that should be included in a movie or book. Before long, I thought I would try writing a book. If I failed, nothing would be lost but my time. Forty-nine writing days later, I had my rough draft that didn't resemble my dream minus the idea that artificial intelligence would be Earth's first contact and possibly its last..

This leads us back to the question of why write a book? I didn't want to write the book at first. But after asking my son if one of the main characters could take his name and he agreed, it was too good an opportunity to pass up. I also wanted to write a book he could pick up and read without worrying about the content in the book.