It’s been a while now since we’ve heard from the Liberals on the issue of innovation. Acute threats to the Canadian economy – from a budding trade war with the United States to ongoing doubts about the future of NAFTA – have forced the Liberals to step away from their original promise to create an “innovation economy,” and it’s entirely possible that the superclusters initiative announced last February will be the last we ever hear on the topic, at least before the next federal election.