Mark Twight is an alpine climbing ledgend, he's writen this book about his carazy alpine climbing ethics, were less is more, where taking the bare minimum to survive is the norm for him. For example having an energy gel very 30 minutes and drinking 4 leters of water an hour to climb some crazy loss hard climbs in the alps.

Makes me feel like a bit of a wimp.

A rout that took me and my freind 2 hole days to do he could do it in 4 hours!