Training for David Goggins - 4x4x48 Challenge | Lex Fridman
Lex Fridman
Lex Fridman has recently completed a six-mile run in freezing Boston conditions to prepare for an upcoming endurance event with David Goggins, known as the 4x4 by 48 Challenge. Scheduled for Friday, March 5th at 8 PM Pacific time, this unique challenge requires participants to cover forty-eight mile …