Design the interface for functionality not familiarity

When designing interfaces, it is essential to prioritize functionality over familiarity. This principle is particularly relevant when considering touch screen interfaces for Mac computers. While touch screens have become commonplace in smartphones due to their ubiquity, this familiarity does not necessarily translate to optimal usability for other devices.

The article explores the introduction of touch screens in cars and highlights the problems they have caused for drivers, especially those who wear gloves in cold weather. The author argues that touch screens are not the best interface for cars, as familiarity breeds contempt in this context. Smartphone touch screens were designed based on the physical constraints of smaller devices, removing physical keyboards to maximize screen size.

This decision aimed to provide a more intuitive interface, but it has led to the expectation that touch screens should be the primary input method for all computing devices. However, the author contends that this expectation is misguided, as traditional Mac interfaces with keyboards and indirect pointing devices offer greater power and productivity for most purposes.

The author draws a parallel between touch screens in cars and Macs, suggesting that introducing touch screens to Macs is akin to adding training wheels to bicycles. Just as kids should eventually outgrow training wheels, new Mac users should learn to use the traditional interface to unlock the full potential of their devices. The author concludes by quoting a positive comment from Hacker News, emphasizing the importance of designing interfaces that prioritize functionality and avoid unnecessary innovations that may hinder user experience.