Lazy. Entitled. Dumb. The words to describe Millennials and Generation Z have been said countless times, but now they have begun to fight back. The phrase, "Ok, Boomer" has become viral, sparking a rallying cry for Millennials and Generation Z to embrace and declare proudly in comment sections, social media and merchandise. Although it is dismissed as rebellious and unwarranted, on a deeper level, the phrase speaks to the growing divide between the...