When you are solving a difficult problem re-ask the problem so that your solution helps you learn faster. Find a faster way to fail, recover, and try again. If the problem you are trying to solve involves creating a magnum opus, you are solving the wrong problem.
The enabling features aren’t obvious and evident, because the key was getting rid of stuff.
– Jonathan Ive, on designing the iPod [Wired]
A rectangle with sharp edges takes indeed a little bit more cognitive visible effort than for example an ellipse of the same size. Our “fovea-eye” is even faster in recording a circle. Edges involve additional neuronal image tools. The process is therefore slowed down.
If you’re not embarrassed – in the consumer internet – by the first version of the product you launched, you’ve launched too late.