Jack Matthews, an American who is the chairman of MediaWorks, a large New Zealand broadcaster, told me, “I think, in the back of people’s minds, frankly, is that, if the world really goes to shit, New Zealand is a First World country, completely self-sufficient, if necessary—energy, water, food. Life would deteriorate, but it would not collapse.” As someone who views American politics from a distance, he said, “The difference between New Zealand and the U.S., to a large extent, is that people who disagree with each other can still talk to each other about it here. It’s a tiny little place, and there’s no anonymity. People have to actually have a degree of civility.”
In building Reddit, a community of thousands of discussion threads, into one of the most frequently visited sites in the world, Huffman has grown aware of the way that technology alters our relations with one another, for better and for worse. He has witnessed how social media can magnify public fear. “It’s easier for people to panic when they’re together,” he said, pointing out that “the Internet has made it easier for people to be together,” yet it also alerts people to emerging risks. Long before the financial crisis became front-page news, early signs appeared in user comments on Reddit. “People were starting to whisper about mortgages. They were worried about student debt. They were worried about debt in general. There was a lot of, ‘This is too good to be true. This doesn’t smell right.’ ” He added, “There’s probably some false positives in there as well, but, in general, I think we’re a pretty good gauge of public sentiment. When we’re talking about a faith-based collapse, you’re going to start to see the chips in the foundation on social media first.”
Business titans grew uncomfortable. In 1889, Andrew Carnegie, who was on his way to being the richest man in the world, worth more than four billion in today’s dollars, wrote, with concern, about class tensions; he criticized the emergence of “rigid castes” living in “mutual ignorance” and “mutual distrust.” John D. Rockefeller, of Standard Oil, America’s first actual billionaire, felt a Christian duty to give back. “The novelty of being able to purchase anything one wants soon passes,” he wrote, in 1909, “because what people most seek cannot be bought with money.” Carnegie went on to fight illiteracy by creating nearly three thousand public libraries. Rockefeller founded the University of Chicago. According to Joel Fleishman, the author of “The Foundation,” a study of American philanthropy, both men dedicated themselves to “changing the systems that produced those ills in the first place.”
When bands of marauders start roaming the streets, how are you going to keep them out? Tear down a few walls, says Timothy Ferraro, a twenty-five-year construction veteran who's thought about this situation plenty while watching The Walking Dead. "Assuming the attackers don't have a battering ram, you should be able to keep them out using the lumber and drywall already in your home," he says.