I've been typing on a daily basis for the past 41 years. I took a typing class 36 years ago, and have continued to type probably 90-95% 'properly' ever since.

I've been typing on a daily basis for the past 41 years. I took a typing class 36 years ago, and have continued to type probably 90-95% 'properly' ever since. This class paid off by the way, and my accurate typing speed peaked at around 140 words per minute. Like you, I've been blessed with never having any hint of RSI. I'm not necessarily disagreeing with you, but I think the whole 'RSI landscape' is, as with most things, very complex, including a lot of poorly understood or currently unknown factors.