As a general rule, the propensity of non-bicyclists to give biking a try is inversely proportional to the average velocity of the bikers they see on the street. If you live in a city where women in wedge heels are steering their old steel bikes around their daily errand route, there’s really nothing intimidating or scary about the prospect of getting on a bike yourself. If it’s all hipsters on fixies, by contrast, that just makes biking feel all the more alien and stupid.

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— Reuters blogger Felix Salmon reflects on the Slow Bike movement