>[!abstract] >The specificity paradox is that focusing on one problem space or one set of user needs opens unexpected opportunities and benefits other users too. It feels paradoxical because specialization is generally perceived as narrowing usefulness, but the bar for being generally useful is much higher now that people have access to quasi-infinite knowledge in their pockets. > >A classic example of the paradox of specificity is when commercial pilot Robert Plath flipped his suitcase to sit on its narrow side, and added wheels underneath, thereby creating the first rolling cabin-sized luggage that is tall enough to be pulled along as we walk. >[!related] >- **North** (upstream): — >- **West** (similar): — >- **East** (different): — >- **South** (downstream): —