Author Tim Wigmore expands on why younger siblings have far more chance of becoming elite athletes, why medium-sized towns produce the most superstars, the role of informal play in creating pros, why right-handed kid cricketers should start batting left-handed, how Jamie Carragher made it to the top of world football despite a lack of athletic gifts, how sleep is the next frontier for advancement in sport and much, much more.See omnystudio.com/listener for privacy information.