Yes but what stops somebody from recording words for the computer to use as it converts text to speech? To make it even easier on the computer they could record the words in the same order they are written in the book.

One of my professors in college worked on a government project to design an automated highway system where cars would drive themselves. They had everything figured out and it was completely feasible to put in place. Then the entire project got scrapped because the lawyers couldn't figure out the liability issue.