Moments of crisis, like the shooting in Newtown, tend to produce brief spikes of popular interest in gun control. My research on media attention suggests these spikes are extremely short-lived, and that they may be decreasing in intensity.
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Google doesn't really forget.
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If I use Facebook to stay in touch with my high school friends who are church-going Republicans, I may be getting more ideological diversity than in hanging out with secular progressives on the World Politics sub-reddit.
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It's become relatively commonplace to find corners of Africa that have good cell coverage but no electrical power.
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On Twitter, if you want to quote someone else, you say, 'RT, re-tweet, that person's name, and then what they said before.' And it's a way of essentially saying, 'I'm not saying this, but my friend said this and I thought this was interesting.'
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Increasingly, I'm inspired by entrepreneurs who run nonprofit organizations that fund themselves, or for-profit organizations that achieve social missions while turning a profit.
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It's fine to have social media that connects us with old friends, but we need tools that help us discover new people as well.
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For countries such as Kenya to emerge as economic powerhouses, they need better infrastructure: roads, ports, smart grids and power plants. Infrastructure is expensive, and takes a long time to build. In the meantime, hackers are building 'grassroots infrastructure,' using the mobile-phone system to build solutions that are ready for market.
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A common language is a first step towards communication across cultural boundaries.
