
The point is that every question that pops into our head, when using your product, only adds up to the cognitive workload. It distracts our attention from “why I am here” and “what I need to do”. And as a rule, people don’t enjoy solving puzzles when they merely want to know if that button is clickable or not.
… advanced (no more flash!). But what I mean about that is — nothing has changed in human behaviour. We will always want the principle “don’t make me think” applied to any type of product we interact (whether it is a microwave, tv, smartphone or car).