I guess you guys find these people lunatics, perhaps you are right, but that video which I have seen before is based on a turkish road, where, like most mediterranen cities very busy with traffic, is the only way for a skilled biker to get from a to b, it requires a lot of confidence and yes it is risk prone but no fool undertakes that kind of riding without being very confident and very skilled.
I was born and bred in Naples, Italy, one of the worst traffic infested cities in the world, everything goes there, and it goes very bad for that matter, disorganized and selfish way of driving from cars, vans, trucks etc, traffic lights are rarely respected by drivers, one way systems are often ignored and from a very young age going to school by Vespa type scooter, I have too learnt those skills and I used to ride like that or worse until the day I packed it in in '08.
always on the run