In the next 25 years our cities will grow by millions of people. Before you reach for the panic button consider this: what if they all rode bikes? Don't miss the 9 minute video in the middle of this presentation.
A tip of the helmet to David Hodge for this fascinating look at what could be a very happy future: a city designed for bicycles. Happily, this is not science fiction. In fact, in Copenhagen and Amsterdam, we've already got a couple of working models.