Firearms instructor and survivalist Colonel Jeff Cooper wrote on hardening retreats against small arms fire. In an article titled "Notes on Tactical Residential Architecture" in Issue #30 of P.S. Letter (April, 1982), Cooper suggested using the "Vauban Principle", whereby projecting bastion corners would prevent miscreants from being able to approach a retreat's exterior walls in any blind spots. Corners with this simplified implementation of a Vauban Star are now called "Cooper Corners" by James Wesley Rawles, in honor of Jeff Cooper.[7] Depending on the size of the group needing shelter, design elements of traditional European castle architecture, as well as Chinese Fujian Tulou and Mexican walled courtyard houses have been suggested for survival retreats.
The helicopter eased down onto a lawn beside a putting green. The new luxury community will have three thousand acres of dunes and forestland, and seven miles of coastline, for just a hundred and twenty-five homes. As we toured the site in a Land Rover, he emphasized the seclusion: “From the outside, you won’t see anything. That’s better for the public and better for us, for privacy.”
Dennis McClung and family show their backyard food production system known as the Garden Pool; Lisa Bedford (The Survival Mom) takes urban preparation to a new level in preparing for a financial collapse; The Kobler and Hunt families combine forces in order to ensure food production through an economic collapse. David Kobler and Scott Hunt are the owners of the Practical Preppers company that provides the expert evaluation in latter episodes.[12]
If marauding neighbours, starvation and the putrefaction of family members’ corpses wasn’t harrowing enough, the magazine also obsessed over the threat posed by vermin and feral animals that were expected to roam the nuclear wasteland. “A wounded rat can be very dangerous and may attack while you are trying to reload,” explained one article. “If it is necessary to deal with a pack of rats help may be required.”
To me, the best option is to store emergency food. How much? If you have none, store enough for a few days. If you have enough for a few days, get enough for a week. How much you store depends on what time frame you think you're at risk for having to be completely independent. The early settlers of the southwest liked to store enough food for a whole year and still do to this day!

He points to the cash registers over his left shoulder. “I’ll bet you there’s not one thing you bought today that didn’t use electricity in the transaction,” he says. Before Y2K, Finelli says he owned a small computer manufacturing company and personally upgraded 8,000 operating systems so the dates would roll over from 1999 to 2000. “Because they wouldn’t,” he says. “There was a defect. I know that computer systems are frail because I built them.” He says a widespread power outage would cripple us—no electricity, no trading debt portfolios, no buying wholesale taquitos on credit. 
Every year since 1947, the Bulletin of the Atomic Scientists, a magazine founded by members of the Manhattan Project, has gathered a group of Nobel laureates and other luminaries to update the Doomsday Clock, a symbolic gauge of our risk of wrecking civilization. In 1991, as the Cold War was ending, the scientists set the clock to its safest point ever—seventeen minutes to “midnight.”
Tim Chang, a forty-four-year-old managing director at Mayfield Fund, a venture-capital firm, told me, “There’s a bunch of us in the Valley. We meet up and have these financial-hacking dinners and talk about backup plans people are doing. It runs the gamut from a lot of people stocking up on Bitcoin and cryptocurrency, to figuring out how to get second passports if they need it, to having vacation homes in other countries that could be escape havens.” He said, “I’ll be candid: I’m stockpiling now on real estate to generate passive income but also to have havens to go to.” He and his wife, who is in technology, keep a set of bags packed for themselves and their four-year-old daughter. He told me, “I kind of have this terror scenario: ‘Oh, my God, if there is a civil war or a giant earthquake that cleaves off part of California, we want to be ready.’ ”
Anarcho-primitivists share many characteristics with survivalists, most notably predictions of a pending ecological disaster. Writers such as Derrick Jensen argue that industrial civilization is not sustainable, and will therefore inevitably bring about its own collapse. Non-anarchist writers such as Daniel Quinn, Joseph Tainter, and Richard Manning also hold this view. Some members of the Men Going Their Own Way subculture also promote off-grid living and believe that modern society is no longer liveable.[108]

To Levchin, prepping for survival is a moral miscalculation; he prefers to “shut down party conversations” on the topic. “I typically ask people, ‘So you’re worried about the pitchforks. How much money have you donated to your local homeless shelter?’ This connects the most, in my mind, to the realities of the income gap. All the other forms of fear that people bring up are artificial.” In his view, this is the time to invest in solutions, not escape. “At the moment, we’re actually at a relatively benign point of the economy. When the economy heads south, you will have a bunch of people that are in really bad shape. What do we expect then?”
Business for Hardened Structures, an engineering firm based in Virginia Beach, is up roughly 40% since 2005, co-owner Brian Camden says. Some of his clients buy gold and silver and other precious metals as a hedge against a possible collapse of the currency, and they want to be able to protect it and their families, he says. So his company designs ways to build underground bunkers, strengthen walls and improve security systems on homes.

When I started putting together my first survival kit, I just collected whatever weird stuff I could find—like tablets that would protect my thyroid from nuclear fallout. My mindset changed when my first daughter was born. I realized I needed a more practical end-of-the-world plan, with equipment that would be useful for things that might actually happen. Nuclear war is probably not in store for 2018, and if it is, I’ll just open a window. I don’t want to live through that.