If the group became indifferent to Finelli’s leadership prior to his ouster, he became just as frustrated with their complacency. Preppers began ignoring his strict no cell phone rule. Few took concrete steps to be more prepared over the years, he says. He’d set out to develop independent thinkers, not apathetic disciples. “I mentioned to the group that at some point, Vinny may not be available,” Finelli says. “So be prepared at a moment’s notice.” That’s why he feels like he failed: He left the preppers unprepared.
Pense just sold his company, Gardening Revolution. For 20 years he shipped the proprietary iron, zinc, manganese, copper, sulfur and boron soil blend. Each bed costs $800, after you buy the cinder blocks and mat. On his best year, he shipped $580,000-worth of them. The magazine John Deere Homestead featured him. He’s taught classes on raised-bed gardening and survival in his cabin ever since. “The record on tomatoes is 274 pounds for one plant. Think about that,” Pense says. “That’s a lot of ’maters for one plant.” More than the ’maters, he’s proud of teaching people younger than him to grow their own food. 
Yishan Wong, an early Facebook employee, was the C.E.O. of Reddit from 2012 to 2014. He, too, had eye surgery for survival purposes, eliminating his dependence, as he put it, “on a nonsustainable external aid for perfect vision.” In an e-mail, Wong told me, “Most people just assume improbable events don’t happen, but technical people tend to view risk very mathematically.” He continued, “The tech preppers do not necessarily think a collapse is likely. They consider it a remote event, but one with a very severe downside, so, given how much money they have, spending a fraction of their net worth to hedge against this . . . is a logical thing to do.”

Doug owns a rock hauling business in Tennessee and plans to bug-in with his family in his underground bunker. Doug, whose line of work has earned him the nickname "Rockman", also plans to use a hillside full of boulders as a defense to ward off potential threats. He is also stockpiling coins minted before the 1970s because of their higher silver content, which makes them useful for bartering. Jeff Flaningham is a single, Wisconsin native, who is looking for woman who will live with him in his decommissioned SM-65 Atlas missile silo located in rural central Kansas in the event of a catastrophic event. During the program, Jeff goes on dates with three women he has met through an online dating service. He then arranges a second date with one of them, Stephanie, to go visit his missile silo.
Car electricity runs on direct current, but almost everything else is alternating current. What you need: an inverter. Some cars have them built in, but you can get one at a store for less than $40. Use the clamps to attach the inverter directly to the terminals on your car battery. Let the car run at idle and you have 110-volt AC power for as long as you have gas. With a 300-watt inverter, you'll have enough amps to run a laptop or even a television.