I’m heading to a battle of the barbecues tonight here in KC. It’s being hosted by well-known economic blogger Tyler Cowen. His blog, Marginal Revolution, is always good reading. But before I get my face messy, I thought you might be interested in this chart, pointed out by Kai Ryssdal. As Kai says — Citigroup, GM, and B of A could go to zero tomorrow and the Dow would barely budge. Sign o’ the times.