Detroit News Columnist Daniel Howes and Michigan Radio are partners in weekly essays examining what's hot in Michigan business and politics – and what it all means. This week, Howes says Michigan’s economic revival continues to gain traction. But the good times cannot last forever – because they never do. And because the competitive landscape is changing with an alarming speed set not by Detroit, but by the innovative risk-taking that is driving Silicon Valley and the march of technology. The quickening global competitive metabolism threatens to leave Michigan behind if it refuses to shift into a higher gear.