Abstract
If the modern perspective on the engineered world is split between computation and information, where does control fit in? Control straddles the boundary because it shares many characteristics with distributed computation (witness the study of tree codes for interactive protocols) but it also has an informational dimension to it. In this way, control is about information flows except that the information flows are embodied in ways that we are constrained to effect. The additional structure of linear control systems allows us to say more about them from an informational point of view. This talk introduces a few ideas in this direction.