In this TED talk, Steven Johnson talks about where great ideas come from. It is not as we think, that people have "Eureka" moments. Instead, they arise from networks. Hence, the quote in the title. If we want to innovate in public education, we have to encourage networks like professional learning communities. We need to connect with the public in engaging dialogue. We need to overcome the social capital-depleting practices we tend to engage in where we square off against each other, debating and defending our positions.
This TED talks is fun to watch if, for no other reason, you learn how a neo-natal incubator is made from parts originally designed for an everyday machine (I will not spoil the surprise).