Woah, that's some massive hyperbole there; learning Dvorak does not risk your ability to earn a living in this industry.
I think he was just referring to the productivity hit during the learning curve.
Yes, because while you're learning one style, you completely forget the other style and are left unable to type fluently. </sarcasm>
(I'm still able to type in both.)
That makes sense.
>What fascinated me about learning Dvorak was that I felt like a stroke patient.
That's a perfect explanation of the learning process. I just don't think people should be playing the stroke patient with their livelihoods.