Are UI developers all left handed?

Tom H tomh0665 at
Thu Aug 9 12:26:02 UTC 2012

On Wed, Aug 8, 2012 at 3:12 PM, John Moser <john.r.moser at> wrote:
> On Wed, Aug 8, 2012 at 3:06 PM, Tom H <tomh0665 at> wrote:
>> On Wed, Aug 8, 2012 at 11:25 AM, Phillip Susi <psusi at> wrote:
>>> On 8/8/2012 11:01 AM, John Moser wrote:
>>>> Put your mouse pointer in the middle of the screen.
>>>> Put your mouse somewhere you can grab it.
>>>> Now reach out and grab the mouse.
>>>> Where does the pointer end up?
>>> It ends up in the middle of the screen; if you pick up the mouse off
>>> of the pad, it isn't going to move.
>> AFAIU he means that the momentum of the right hand reaching for the
>> mouse moves the pointer to the top right of the screen - or at least
>> moves the pointer in that direction.
> Indeed, and the implication that away and out is the natural
> direction.  Swinging my arm inward and pulling it toward me seems to
> put stress on tendons in the shoulder; when the arm is closer, it
> pushes against the torso; an inward wrist movement seems more
> stressful than an outward one; extending the fingers pushes the mouse
> away (and lowers the hand, straightening the wrist), curling them to
> pull is more awkward but also common (and tilts the hand upward,
> creating a sharp angle at the wrist and increasing stress throughout
> the motion).
> Though the fact that the fastest and most natural movement when
> initially grabbing for the mouse seems to be out and away does seem
> significant.

The movement is in the opposite direction for a right-handed user with
a trackpad...

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