"If you are an intelligent cyclist, it makes you far more aware. Instead of looking a car or two ahead of you, you have to look three to four blocks down the road and have to scan left to right constantly to look for escape routes."
"It's a Zen thing. Once you get used to traffic, then you can float through the chaos," he said.
There was a good article on fixed-gear riding today on the Wired site, of all places -