Messaging isn't just about text, but rather conversations. The simplest apps on phones are becoming powerful due to the rapid innovation happening in messaging. Typing on a phone is a challenging proposition, yet people message all day long, often more than any other activity. Mobile messaging works for several reasons, including its asynchronous nature, ease of consumption, informality, and expressiveness. These qualities make it an ideal medium for human conversations. The evolution of messaging continues, with the emergence of new features like cards inside messages, which can provide a richer experience by suggesting entire messages or booking tickets to events. This technology is already being explored in apps like WeChat and Line, and may eventually replace traditional notification systems. Messaging platforms are moving at a faster pace than operating systems, making them more agile and able to innovate quickly. The interplay between new apps, their evolving features, and the content they contain creates an overlapping layer that allows for rapid innovation. As messaging continues to evolve, it's likely to become even more expressive and powerful, changing the way we communicate and interact with each other.