Lesson from Jack Nicholson: all work and no play makes Jack a dull boy.The 2013 Sandbox Summit@MIT will delve into the ways imagination shapes ideas both in and out of the digital world. Through a series of panels, demos, research, and discussions, high-profile speakers will explore how the concept of play and technology is essential to unlocking creative potentials. The goal: "to ensure that the next generation of players become active innovators, rather than passive users, of technology." Ditto. Register by January 31 to save. Tix go for $695.