Too Long; Didn't Read
The belief that products should always be as easy to use as possible is a sacred cow of the tech world. The rise of <a href="https://en.wikipedia.org/wiki/Design_thinking" target="_blank">design thinking</a>, coinciding with beautiful new products like the iPhone, has led some to conclude that creating slick interfaces is a hallmark of great design. But, like all attempts to create absolute rules about how we should interact with technology, the law that design should always decrease the amount of effort users expend doesn’t always hold true. In fact, putting users to work is critical in creating products people love. This will be referred to as “user investment”, or “investment”.