Sitting in the bar on a slow night, a young robotics engineer from Europe attending graduate school in Pittsburgh, lamented about American politics. "I don't know what's going to happen," he said. "There’s nothing we can do." "Wait a minute," I said. “Aren't you developing vertical farming technology?" "Yes, that's right." "So the poor can feed themselves?" "Definitely.” "Sounds to me that you’re doing plenty." The young friend didn't reply, and instead took a pull from his beer. A minute later he laughed hard at something on the television. He wore a permanent smile for the rest of the night.