When Marshall McLuhan coined the phrase “the medium is the message” in 1964, personal computers were unknown, mobile phones were science fiction, and the Internet didn’t exist. Today we understand what great foresight he had in predicting how our thinking is influenced in this digital age. In Nicholas Carr’s book The Shallows: What the Internet Is Doing to Our Brains, he writes, “[The media] supply the stuff of thought, but they also shape the process of thought. And what the Net seems to be doing is chipping away my capacity for concentration and contemplation. Whether I’m online or not, my mind…