As Phil Root, the deputy director of the Defense Sciences Office at DARPA, recounted to Scharre, “A tank looks like a tank, even when it’s moving. A human when walking looks different than a human standing. A human with a weapon looks different.”

In order to train the artificial intelligence, it needed data in the form of a squad of Marines spending six days walking around in front of it. On the seventh day, though, it was time to put the machine to the test.

“If any Marines could get all the way in and touch this robot without being detected, they would win. I wanted to see, game on, what would happen,” said Root in the book. //

the Marines, being Marines, found several ways to bollix the AI and achieved a 100 percent success rate.

Two Marines, according to the book, somersaulted for 300 meters to approach the sensor. Another pair hid under a cardboard box.

“You could hear them giggling the whole time,” said Root in the book.

One Marine stripped a fir tree and held it in front of him as he approached the sensor. In the end, while the artificial intelligence knew how to identify a person walking, that was pretty much all it knew because that was all it had been modeled to detect. //

The moral of the story? Never bet against Marines, soldiers, or military folks in general. The American military rank-and-file has proven itself more creative than any other military in history. Whether that creativity is focused on finding and deleting bad guys or finding ways to screw with an AI and the eggheads who programmed it, my money's on the troops.