You and I both will be retired before that happens. Sure, they have speech recognition software that is getting better every year. That's one mistake every 20-50 words or every couple of sentences. It may be a lot less typing, but not a lot less time, especially if you try to use the voice commands to correct the mistakes. In a recent article, PC Magazine writer Bill Machrone expressed the following concerns with using speech recognition software.
Nobody knows how to dictate.
Back in the days when dictation was common, stenographers and secretaries were trained to take a jumble of notes and compose them into meaningful letters and fill in the blanks. A computer can't do that. It also doesn't let you easily move things around or build on ideas. Few agents today would be able to dictate an acceptable letter. It's just a lost skill.