In my last two posts I’ve noted while war deaths have fallen greatly since the world wars, the magnitude and duration of this fall isn’t that far out of line with previous falls over the last four centuries, falls that have always been followed by rises, as part of a regular cycle of war. I also noted that the theory arguments that have been offered to explain why this trend will long continue, in a deviation from the historical pattern, seem weak. Thus there seems to be a substantial and neglected chance of a lot more war in the next century. I’m not the only one who says this; so do many war experts.

If a lot more war is coming, what should you do personally, to help yourself, your family, and your friends? (Assuming your goal is mainly to personally survive and prosper.) While we can’t say that much specifically about future war’s style, timing, or participants, we know enough to suggest some general advice.

1. Over the last century most war deaths have not been battle deaths, and the battle death share has fallen. Thus you should worry less about dying in battle, and more about other ways to die.

2. War tends to cause the most harm near where its battles happen, and near concentrations of supporting industrial and human production. This means you are more at risk if you live near the nations that participate in the war, and in those nations near dense concentrations and travel routes, that is, near major cities and roads.

3. If there are big pandemics or economic collapse, you may be better off in more isolated and economically self-sufficient places. (That doesn’t include outer space, which is quite unlikely to be economically self-sufficient anytime soon.) Of course there is a big tradeoff here, as these are the places we expect to do less well in the absence of war.

4. Most of your expected deaths may happen in scenarios where nukes are used. There’s a big literature on how to prepare for and avoid harms from nukes, so I’ll just refer you to that. Ironically, you may be more at risk from being hurt by nukes in places that have nukes to retaliate with. But you might be more at risk from being enslaved or otherwise dominated if your place doesn’t have nukes.

5. Most of our computer systems have poor security, and so are poorly protected against cyberwar. This is mainly because software firms are usually more eager to be first to market than to add security, which most customers don’t notice at first. If this situation doesn’t change much, then you should be wary of depending too much on standard connected computer systems. For essential services, rely on disconnected, non-standard, or high-security-investment systems.

6. Big wars tend to induce a lot more taxation of the rich, to pay for wars. So have your dynasty invest more in having more children, relative to fewer richer kids, or invest in assets that are hidden from tax authorities. Or less bother to invest for the long run.

7. The biggest wars so far, the world wars and the thirty years war, have been driven by strong ideologies, such as communism and catholicism. So help your descendants avoid succumbing to strong ideologies, while also avoiding the appearance of publicly opposing locally popular versions. And try to stay away from places that seem more likely to succumb.

8. While old ideologies still have plenty of fire, the big new ideology on the block seems related to woke identity. While this seems to inspire sufficiently confident passions for war, it seems far from clear who would fight who and how in a woke war. This scenario seems worth more thought.

Added 27July:

9. If big governance changes and social destruction are coming, that may create opportunities for the adoption of more radical social reforms. And that can encourage us to work more on developing such reforms today.

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