It’s been commonly held for a long time that the deficit spending and industrial gear up for World War 2 are what finally shook the US out of the Great Depression, which has created a deeply-seated association between war and economic stimulation. It’s worth revisiting that question for today’s extremely different conflicts and economy. It may not be true anymore, and if not, that seems worth knowing.

Similarly, there’s a long history of warfare driving technological innovation. I think this one is even less controversial. It’s just a fact. But pointing that out doesn’t mean I’m recommending we go to war for the sake of innovation.

Sounds like it, they seem to think that the hate that motivates people to work harder for no extra pay out of revenge against the current boogeyman is a good way to extract more from "the cattle".