Watch record-breaking free solo slackline walk
by Mark Frauenfelder from on (#HNBJ)
Earlier this month, Spencer Seabrooke broke the world record for the longest free solo slackline ever. He walked 209 feet, 1000 feet above a canyon in Canada. He slipped off the rope twice and had to catch himself.
The soles of my feet start to hurt when I watch videos of people doing crazy high-elevation stunts. Does that happen to anyone else? 