Of course there aren’t, but it is a great way to simplify decisions. Break down the problem to two kinds of people and decide which one you want to optimize for. Some examples:
There are two kinds of people…
- Those that wants their inbox to be empty except new things and
those that let’s their inbox pile up until kingdom come.
- Those that browses by clicking and
those that searches.
- Those that likes their UI to be dense with every choice available and
those that likes progressive disclosure.
- Those that loves analytics and
those that don’t.
The reality is always a mix. There are people on all points of the spectrum, but putting people in a mutually exclusive paradigm that then you can sometimes shed light on your design choices.
When I design user interfaces, I try to remember my design principles, but also be open to the minority of people who like strange things.
There are two kinds of people … those who think there are two kinds of people in world and those who think there are more…or less…or both.