I like his point about people not being willing to give up privacy for security, until someone dies.
I also agree that small groups of people (15-20) are probably the best model. There are just so many variables to consider that it seems impossible.
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Best bet is to get your family around you and lock and load all together. Thats what we are doing. There’s a reason why the term “blood is thicker than water” got started.
If you don’t have a family then the banding together with neigbors is probably the next best thing.
Going it alone with only 2 or 3 people is going to be tough unless you are on the top of a mountain with only one way in and one way out.