(CNN) Extremism has a knack for metastasizing and coming back to wreak havoc upon its hosts. Once a cohort or society builds a hateful mindset, the hatred takes on a life of its own. Extremist ideology not only hurts a society’s enemies, but also eventually attacks from within and harms the society from which it originated. I first started observing this phenomenon abroad — and it saddens but does not surprise me that we are starting to see it haunt American democracy too.
Imagine this: you step into the elevator and instinctively reach for your smart phone, only to discover that you’ve mistakenly left it at your desk. A sense of panic sets in as you wonder what to do. What will you think about when you can’t have your “thoughts” fed to you?