Although the Minneapolis Convention Center draws visitors from throughout the region and country to its events, the center itself remains somewhat isolated from the rest of Minneapolis, surrounded by large parking facilities and a major interstate that pull us quickly from task to task and thing to thing. After a century of the automobile and decades of globalization, however, we are gradually rediscovering the utility of our feet and the importance of a local place. With MIMMI, the Minneapolis Interactive Macro-Mood Installation, we propose to create a public gathering space that helps visitors to the convention center and Minneapolis residents linger and walk, and get to know one another while they explore what the city has to offer.Hovering at an altitude of 70 feet above wooden dunes that serve as benches, MIMMI is a large inflatable organism that provides an emotional gateway to the city. MIMMI is able to sense the mood of the city and offers a fun and active mechanism to respond to this mood, allowing residents and visitors to experience the city as a whole in a new way.MIMMI senses the mood of the city by observing keywords in social media feeds from Minneapolis. When MIMMI senses changes in the collective emotional state, it represents this change through it behavior and appearance. Emotions can include calmness, agitation, melancholy, happiness, and many others, which reflect the changing opinions of the city itself.Visitors to the plaza can also interact with MIMMI directly, causing the colors and shape of the inflatable and its projections to change in real time. If the city is particularly sad or emotional for any particular reason, citizens can come together to lift MIMMI’s (and the city’s collective) spirit, as MIMMI is able to sense social activity under it. Whether the benches are being used or crowds are gathering under it and having a party, MIMMI gradually displays calming behavior.MIMMI consists of a balloon about 125 feet by 75 feet by 60 feet in size. This creates a large space underneath that can be shaded by the balloon, creating a comfortable microclimate for visitors. MIMMI will be created of a durable plastic, which can be reused or recycled after its deconstruction. MIMMI will also collect and reuse stormwater to create mist, cooling visitors during the hot summer days.In pursuing this project, we wish to create a space in which people can come to enjoy the company of others and experience the mood of the city together. In addition to this, we also propose the development of an integrated application for computers and mobile devices, which will allow the city’s collective experiences over the summer to be gathered and shared among the city. By accessing this information, residents can see the city in an entirely new way, even learning suggestions about where to go for an enjoyable picnic or event, based on direct feedback from citizens.