Just six years after building the world’s largest yogurt factory from scratch in the desert in south Twin Falls, Chobani is plotting its next miracle: an additional $100 million in expansion projects. The goal, says founder Hamdi Ulukaya, is to transform southern Idaho into the Silicon Valley of food innovation. Gov. C.L. “Butch” Otter calls the plan epic. Some folks may underestimate southern Idaho. Ulukaya isn’t one of them. In fact, he sees potential here that seems almost limitless.