I am an avid outdoorsman with experience in long distance hiking and backcountry winter travel. I love TRUE survival stories, but this one is not only false but obviously so. It is simply not possible to bushwhack 20-30 miles a day through deep snow with almost no food and no water as recounted in the Northern part of the trek - and to make that distance in actual forward progress with no map.
He also claims to have gone 8 and then 12 days with no water in the Gobi desert in the heat of summer while walking miles and miles each day. This also is impossible as survival without water in these conditions is limited to a very few days at best.