Both physicist Brian Greene and neurologist Oliver Sacks explain the very strange, very subjective nature of time.

The elasticity of experience is expressed by sound artist Ben Rubin in a piece he produced for The Next Big Thing. We include an excerpt on being in "the zone." His story features track stars: Shawn Crawford, Amy Acuff, Brendon Couts, Jason Pyrah, Derrek Atkins, Jon Drummond, and Larry Wade.