The biggest issue when talking about usability is that people tend to be used to what they get, even if sub-optimal. And because they are used to it, they will never question the validity of the current model and, worst, they will fight loudly against any change. That's why I'm so pleased when someone come with an out-of-the-box idea.

machine with buttons

Just think about a machine that will need input. Add lot of buttons, more than one hundred, nearly all of the same size and color. Spread those buttons in a total random order, without even aligning them. That's it, you have the most widely used human-machine input mechanism : the keyboard !

Scary, isn't it ?

Read next