If we really are sincere about making Nicollet Mall a premier must-see destination, and one of the most vibrant public spaces in America, a few things must happen. Whether or not we spend $40-plus million to rebuild the street and then more to route a streetcar down the middle, we should completely overhaul the zoning code for buildings fronting Nicollet – we need a form-based code for the buildings and the street. And we should consider tearing down the four skyways that cross Nicollet between 5th Street and 10th Street. Before you shoot a million holes in this idea, hear me…