We were just thinking that it's been a while since MoMA's last big, fascinating, "Oh, the things that are possible these days" design exhibition (2008's Design and the Elastic Mind), and here it is. The theme here is interactivity, from a London bakery's tweeting device that signals followers as new pastries exit their oven, to a prototype for a microchip-containing gel capsule pill that signals doctors and family members when the patient has taken their medicine—from within the user's stomach.