They’re versatile, simple tools that communicate actions and reactions without needing a single word, but online talk now goes beyond that. I can say from personal experience that it is possible to have an entire conversation with only pictures—no regular words necessary. Are we reverting to the prehistoric times of painting on walls to share our thoughts, or are we evolving past the need for language? Most simple ideas benefit from image communication, as visuals transcend subjective interpretation and language barriers. International airports, famously crowded, would probably be much harder to navigate if everything was written out in a language many don’t understand instead of using arrows and numbers.