The documentary summarizes McNamara’s eleven lessons: 1. Understand the
enemy with empathy
2. Reason can’t save mankind 3.
People can’t just look at themselves All may mean huge casualties and destruction . In large-scale wars, human life becomes increasingly small. 5. Wars should follow the principle of proportionality. Go to war for the sake of conscience or interests, and the result is only winning or losing . 6. Obtaining information McNamara is good at looking at the reasons from the results, analyzing the data, and then adjusting and improving to affect the results. When he was president of a non-Ford family during the decline of the car Ford, he studied Ford's customer market, launched economical cars, analyzed the causes of car accidents, developed seat belts, and safer steering wheels. 7. Beliefs and seeing with one's own eyes are often wrong thoughts that lead to actions. If the thoughts are wrong, people only see what they want to see, and what they see is not necessarily true. 8. Review your thoughts at any time 9. Sometimes evil must be done for good . War is cruel, so is it justified by evil and killing? 10. There is no absolute thing in the world 11. Human nature cannot be changed. He proposed "the fog of war, war is too complicated, human beings cannot use their brains to understand all the variables, our judgment and understanding are not enough, so it will kill People who deserve to be killed" have limits to rationality. "We can't stop exploring, the end of our exploration will return to the starting point,
Rediscover this place. "
He doesn't say a word about responsibility and guilt for the war.
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