everyone online.
That was a much less felicitous task.
This idea that there is a non-dominant hand that sets the frame and
a dominant hand that does the fine motor work was articulated by Yves Guiard,
and he described it as the kinematic chain.
In particular because our non-dominant hand usually leads the interaction and
the dominant hand follows.
Here's another example is with eating,
where if my non-dominant hand uses the fork.
And that's gonna set the frame for my eating action.
And then, the knife does the fine motor activity.
Unless you're a drummer, if you flip these two so that you have to do the fine
motor activity with your non-dominant hand, that gets a lot more difficult.
But let's look at the computer here.
So for typing, I've got two hands.
It's a reasonable interface.
Boom, boom, boom.
Especially for a touch typer, it's pretty quick.
There are a lot of cues that are involved so
that my hands can both work without constant input from the eyes.
The keys have edges to them,
there are homing elements on these two keys right here.
And so I can type pretty quickly with my two hands.
But for things other than typing,
our computers today are mostly using just one or maybe two fingers.
There's a couple of domain exceptions.
If I have something like Photoshop, I can use the non-dominant hand
to set the tool, and then the non-dominant hand to do the fine motor work.