adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-BUSINESS","nativepaywallcategory" : "NATIVE_PREM-BUSINESS"};A business leader who knows a few things about creating new businesses says Columbus needs more risk-takers who are willing to see their ventures flop. “Failure is a good thing. If you don’t fail, you don’t learn,” venture capitalist Mark Kvamme told more than 1,000 people at this morning’s Columbus Chamber annual meeting.