Let it be widely believed—and I do believe it, for exactly the same reason I one-box on Newcomb’s Problem—that if people decided as individuals not to be soldiers or if soldiers decided to run away, then that is the same as deciding for the Barbarians to win. By that same theory whereby, if an election is won by 100,000 votes to 99,998 votes, it does not make sense for every voter to say “my vote made no difference.” Let it be said (for it is true) that utility functions don’t need to be solipsistic, and that a rational agent can fight to the death if they care enough about what they’re
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