100th anniversary of the birth of Jane Jacobs, the saint of the new urbanism. I’m something of a dissenter. Of the two great urban-planning ideologies of the 20th century, big-block modernism and Jacobsian urbanism, the clear winner, as everyone knows, was Jacobs. Don’t destroy the organic community that already exists. Fair enough – the sociological classic ‘everything in its path’ by Kai Erikson made that imperative. Urban Renewal in the style of the war on …