PositiveSan Francisco Chronicle... a fresh, provocative take that upends the self-serving mythologizing of the valley’s own ... casts familiar figures in a new light ... doesn’t skimp on the milestones of valley lore ... O’Mara spotlights the village of institutions, networks and ancillary services — corps of bankers, lawyers and marketers overlooked in many accounts of the valley’s exceptionalism — behind the big moments.