I actually buy this conclusion for this use case, but in fairness the debate was "keyboard vs touchpad". So touchscreen > touchpad > keyboard for rotating objects. But for other things, having to reach up to the screen (e.g., scrolling), is worse than touchpad. With a trackpad, I only have to articulate my wrist while my arm remains resting on the surface; with a touch screen, I have to lift my whole arm and articulate my shoulder and elbow if not also my wrist.

> the debate was "keyboard vs touchpad".

I didn’t mean for it to be that exclusively. I tried to say that keyboards are the best text input device, but gaming mice and controllers are the best gaming input device, graphics tablets are the best graphics input device, and video editing input devices like the ones I linked in my original comment are probably best for video editing (while trackpads are at best decent scrolling/browsing devices, but IMHO I personally prefer keyboard scrolling like in the terminal pager less, the PDF and other document viewer Zathura, and vi-inspired browsers/browser plugins like luakit, qutebrowser, and Pentadactyl).

I'm not a touch screen fanatic but I think using your whole arm instead of just torquing your wrist all day is considered a feature?

Obviously it's not as great if the measure you're looking at is "how quickly can I go back to typing?".