Cool but who needs this? I'd rather see a keyboard that limits you to 10 WPM so you are forced to think before you type
I'm usually thinking of other things at that time, since I just need to transcribe the words in my head, not think about them.
You've never had that with programming or other tasks? You think and figure out what to do, and then it's just a matter of getting the idea down on paper (or computer).
I notice that I can listen to rap and write code this way, but if I shift to trying to write a comment or a docstring then I just get stuck. Its like all English circuits are busy, please hold. But the effect goes away when I know the lyrics very well.