Talking to a computer is ridiculous.
Not really. If speech recognition wasn't so shoddy, it would eventually become yet another way to interact with the user interface.
It would become second nature. It wouldn't replace manual interfaces, but it could complement that interface. But for transcription, it is pretty ridiculous. In the same way that we can read silently faster than we can read aloud, typing silently is faster than voice to text transcription.
And HAL should know!
Remember Scotty in Star Trek IV: The Voyage Home ? "Computer ... Com-puuu-terrr..."