Try it in a crowded office.
And like I said before, wait till someone walks by and tells "computer, exit and don't save" while you are working on that report due Monday morning. Have a nice weekend.
Or better yet
"computer, format D drive, confirm"
It probably won't be speech recognition that wins at the office, it will be neural sensors.
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Go ahead and slam me and be defensive, it's okay. I understand that people are resistant to change.
First of all, I said 'word processing'. Not that the computer would be controlled by voice, that was a bad assumption. In terms of word processing, again, one would probably use a microphone to isolate noise. However resistant you may be, it's just simple fact that speech is much faster than hands. Most people can't even get to 80 wpm, and even me at my fastest could hardly record a slow talker (130 wpm), and especially not very accurately.
Also, considering that it's the future and all, there will probably be recognition to the point that it's obvious when it's not you talking (and it's not even able to be heard when using a microphone), so something stupid like telling the computer to format the drive, beyond not being recognized, would certainly need a password.
I'm not saying bad things about keyboards, I really like having several and typing. However, I'm not going to write out long chapters in twice or three times the amount of time it would take me to dictate the things to the program.
Also, to hashbaz, I did say that retaining the keyboard for programming would likely be necessary, didn't I?