Why voice control is not the future
Voice control is getting better and better. Siri understands the words I say quite well, and one day it will be good enough at understanding the meaning of those words, too. But even when it becomes as good as a human, it would still suck as user interface.
Just remember the last time you were trying to make a friend do something on a computer.
You just have to grab the mouse and do the damn thing yourself.