Meeting Summary: The postdocs at SFI will embark on the third iteration of 72 hours of science. In the past the goal of 72 Hours of Science has been to start from a novel idea to drafting a complete manuscript. In this iteration of the experiment we are expanding our scope. The goal of this meeting is not preset. SFI postdocs will attempt to develop and complete an as-yet unknown project. This mystery project could take the form of developing a scientific publication, a course, a software package, a game, or even a work of art. While the strict goal of producing a manuscript has changed the spirit of 72 hours of science remains the same; to generate new collaborative ideas, build the postdoc community, and experiment with fast-paced project development.