Among the (many, many) things you probably do not know about juggling is the fact that it is, at times, a physically grueling act. It's something I certainly failed to appreciate before meeting Alex Barron. We recently met at a squash court in Burbank, California so I could watch him practice his craft.

The latest in-depth coverage covering the intersection of technology and culture. WIRED’s award-winning journalism will help you make sense of a world in constant transformation. Join us as we explore the ways technology is changing our lives.