As this article shows, we know a lot less about the human mind than we should (even during the Terri Schiavo case, I wasn’t a hundred percent convinced that there was no one home). As the article notes, these are the forgotten people that society doesn’t want to deal with. I know that being locked in is one my biggest fears, infinitely worse than a jail sentence. If technology can open up lines of communication, that would be a huge breakthrough.