It used to be said I-70 was the real Mason Dixon line, where the north side of Indy and northern Indiana were the north while south of I-70 was the south. Due to advances in technology and whatnot, all of that is changing - throughout the country. Today, no younger person grows up living an isolated life like people did decades ago. Through technology, they grow up connected to people throughout the country, throughout the world. For example, it's hard to find someone under 30 these days with a regional or southern accent anywhere - southern Indiana, Kentucky, South Carolina... anywhere. Among the young, regional accents, regional differences are dying.