John and Jordi go back and forth on the usefulness of essays like the one from Demis today: @jordihays: We keep seeing these letters and proposals. And they always come with a request for urgent action. But they rarely come with super concrete, near-term scenarios. I want, "Here's what's going to happen in 6 months. Here's what's going to happen in 12 months." @johncoogan: Or like a trigger. It would be interesting if somebody said, "If the unemployment rate goes above 10%, I would recommend…