An interesting idea by our friends at Bjarke Ingels Group to use a proposed new rail line to link Copenhagen and Malmö and their surrounding cities into a binational metropolitan area.

What I find compelling about these sorts of ideas is the possibility of taking new infrastructure and laying it over existing agglomerations of (often broken and unsustainable) places to make possible both radical innovation and intelligent infrastructural reuse. Whether this BIG idea has practical legs, and whether even something like this could do much to revitalize the ruins of the unsustainable in suburban North America, well, that's a whole different discussion altogether. For now, it's just gratifying to see someone thinking about change at the proper scale.