[marcosdumay]

That is a very weird set of findings.

This one in particular:

> It takes two seconds to decide upon which special-function key to press.

seems to indicate the study was done on people with no familiarity at all with the software they were testing.

Either way, I don't think there is any evidence out there supporting that either of keyboard-only or mouse-only is faster or equivalent to keyboard+mouse for well known GUIs.

[Jensson]

I code with mouse to move the cursor, and I coded fast enough to compete with the fastest in the world in competitive coding. So I don't think keyboard is significantly faster, if it were I wouldn't have been able to write solutions as fast as the fastest in the world did.

But I think its fair to say that its much easier to learn to use a mouse effectively than keyboard navigation, so most people are probably faster with a mouse.

I did try to use keyboard only editors, spend a lot of time on that, but I was always much faster with mouse cursor to navigate and rearrange or copy parts of the code.