For one week in downtown Atlanta, we explored a radically different interface for social media: a Dumpster filled with more than 100 illuminated blocks inscribed with words and emoji. Here, anyone could use the pop-up forum to craft a personal message and share it with the public. The installation was truly digital and physical, as people could press an oversized tweet button to allow their message to be posted to the dumpster's twitter page. ​The social experiment led to keen insights about what makes people stop, interact, and connect with strangers.