At some point in the 21st century, an unwinnable war may be fought.

A modern great power war could see nuclear weapons, bioweapons, autonomous weapons, and other destructive new technologies deployed on an unprecedented scale.

It would probably be the most destructive event in history, shattering our world. It could even threaten us with extinction.

We’ve come perilously close to just this kind of catastrophe before.

Narrated by the author.

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