I don't really like any of those urban cycling videos. Some of them are very skilled no doubt. But a cyclist shouldn't swerve between cars and ride like its 1910 IMHO. I imagine there isn't much of a choice there though, and I'm lucky to come from a country with more accessible cycling infrastructure. But still, even in parts with no cycle paths, we don't swerve inbetween cars and ride like it's an obstacle course - because we intend to get home that day. Alive.