Boston magazine: It’s the final day of HackFit, a hackathon in Cambridge, and the energy at the Microsoft N.E.R.D. Center is high. As teams anxiously wait to present their final pitches, one man drops to the floor to complete a series of pushups in the corner of the room. Then, another man begins to run laps. One team is meditating together in the corner, while a jittery man in a suit is pacing up and down the hall, repeating his pitch in a low whisper. He pauses every few seconds to wipe the sheen of sweat off his forehead.