The book details how the electrical grid is a brittle system, citing the 2013 Metcalf sniper attack (one man severing Silicon Valley’s power) and the 2003 Northeast blackout (a tree branch causing 55 million people to lose power) as proof of its vulnerability to simple sabotage or error. It champions satellite phones, specifically the Iridium network, as the only truly independent communication lifeline. It is portrayed as a device that cannot be shut down by the system, in contrast to cell towers which fail during cyberattacks or deliberate outages, turning smartphones into “bricks.” Solar generators with LiFePO4 batteries are presented…

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