Now, maybe there's truth in it, maybe there's not. But let's be clear, this is not coming from an expert in human ergonomics, or in the history of technology, it's coming from people with an agenda to defend and this is rarely, if ever brought up when it is cited.
If libertarian sources can repeatedly doubt the science behind climate change, then the history of keyboard ergonomics is small beer by comparison.
I knew how to type in QWERTY (140-150wpm) and switched to Dvorak where I quickly got up to speed (130-140wpm) but found very little improvement by any other measure. So I switched to Colemak, which I find far more comfortable than QWERTY and I'm capable of the same speed (140-150wpm).
My biggest problem with using Colemak is nobody else does and I'm not going to convince everyone to relearn how to type. So I use Colemak at home and QWERTY at work.
I was around 90wpm on qwerty when I switched and am similar on dvorak. The big advantage in my mind is not speed, but comfort. The times when I've had to type on a qwerty board all day, my wrists and hands ache at the end of the day. Whenever I use a coworker's computer I feel like I'm doing finger gymnastics.
Would you suggest I learn Colemak? How does it compare, comfort-wise, to dvorak?
if you are using dvorak, switching to colemak may not be worth it.
the bottom line is that any layout that is not qwerty will likely be an improvement. differences between alternative layouts are small compared to the differences with qwerty.
I don't follow touch typing very strictly, for example my left index finger just typed the `y` in `strictly` because it requires less hand movement than moving my right hand from `l` to `y` since my left index was already on `t`.
If you have any blog posts or example of something you type, throw it in [0] this analyzer, which I find fairly accurate. You'll see that Colemak/Dvorak are nearly always on top. In your post, Dvorak wins with a slight edge over Colemak. In my post, Colemak wins with a slight edge over Dvorak. I find them to be pretty equal and it comes down to how you type.