In the old days, public sculpture was a fairly easy proposition.
You had your man on a horse. You had your city leader with his hand in his jacket, looking nobly to the future, holding a document to indicate he was the Father of the Sanitary Horsemeat Act or some such thing. You had an abstract virtue like Charity or Wisdom in female form, marble hand to stony sternum, gazing out with serenity; sometimes she looked as if she was crying for our loss of virtue, but that was usually pigeon stuff.
It's different now. From the description of the sculpture known as MIMMI that will rise by the new Vikings stadium:
By aggregating the positivity and negativity of tweets in real time, MIMMI transmits the abstracted emotion of the city to a series of Wi-Fi-enabled LED bulbs and integrated misting system.
Translation, if you need one: It's a big floating thing that's connected to the Internet, reads local tweets, determines the overall mood and turns them into colors.
There is also a dancing component. The more people dance near the sculpture, the more mist it will produce. You can find relief on a hot day, providing you are willing to Frug in public or execute some sort of modified Watusi. It may not recognize the Twist as a dance; it may interpret that as a vigorous attempt to grind out a cigarette butt. It depends on how relaxed the definition of "dance" is, and I suspect the program accepts any sustained spasmodic thrashing and mists accordingly.
This is where the classic Met Stadium-era Vikings fan looks at the paper, imagines a bunch of hippies waving their arms in the rain in front of a stadium dedicated to football, and thinks, "OK, I'm done with this world. Next."
Since MIMMI bases its changing color on tweets, that means its view of local emotions will come only from those on Twitter. Minneapolis is 32nd in the world when it comes to people who put the city name in their tweets, according to Twitter Grader, although this hardly means they represent the city's mood. It's establishing the city's mood based on the faces of people on the bus.